Why the US Won Every Battle, But Lost the War

0:02On paper, the Vietnam

0:04War was going well.

0:05Briefings were clean.

0:06The graphs were rising.

0:07The enemy kill counts

0:08looked promising.

0:10All the reports said progress.

0:12And then in April of 1975,

0:15as North Vietnamese

0:16forces were closing

0:17in, the last

0:18American helicopters

0:19quickly lifted off

0:20the roof of the US Embassy

0:21in Saigon,

0:22part of the largest

0:23helicopter evacuation

0:24in history.

0:26That gap between the numbers

0:28and reality

0:29is the whole story,

0:30and at the center of it

0:31all was Robert McNamara.

0:33Because Vietnam was not

0:35just a military defeat,

0:36it was a failure

0:37of measurement.

0:38It was the moment

0:39America discovered

0:40that a war can look successful

0:42on a spreadsheet

0:43and still be collapsing

0:44in the field.

0:52Robert

0:53Strange McNamara

0:54was born in 1916,

0:55in San Francisco.

0:56He studied economics

0:57at Berkeley,

0:58earned an MBA at Harvard,

0:59and at age 24,

1:01he was one of the youngest

1:02assistant professors

1:03at Harvard,

1:04teaching accounting

1:05and statistics.

1:06McNamara came of age

1:08just as systems analysis

1:10and the first

1:11programmable computers

1:12were reshaping

1:13how America handled complexity.

1:15He was part of a generation

1:17seized by a single idea.

1:19If you can measure it,

1:20you can manage it.

1:21When World War II broke out,

1:23McNamara joined the US Army

1:24Air Corps

1:25not as a pilot or as a soldier,

1:27but as a statistician

1:29assigned to the

1:30newly formed

1:31Office of Statistical Control.

1:33Operating inside the Pentagon,

1:35McNamara's job

1:36was to bring efficiency

1:38to the massive logistics

1:39of U.S. bombers in the Pacific.

1:41From sortie rates,

1:43fuel consumption,

1:44to payload productivity,

1:45and he was brilliant at it.

1:47By 1945,

1:49working alongside key

1:50American General Curtis

1:51LeMay, McNamara

1:52helped architect

1:53one of the most devastating

1:54bombing campaigns

1:55in the history of warfare.

1:57The data

1:58showed something

1:58that conventional wisdom

1:59hadn't caught up to yet.

2:01The high altitude bombing over

2:02Japan was failing.

2:04Jet stream

2:05winds and cloud cover

2:06were just destroying accuracy

2:08at 30,000ft.

2:09So McNamara

2:10recommended the unthinkable

2:12drop the B-29s down to 5000ft,

2:15load them with incendiaries,

2:16and hit the shadow factories

2:18hidden inside Japan's dense

2:19residential neighborhoods,

2:21where the buildings

2:22were made of paper

2:22and would

2:23essentially burn them out.

2:25And the results

2:26were devastating.

2:27Over a five month

2:28campaign, 67

2:29Japanese cities

2:30were firebombed,

2:31destroying up

2:32to 60% of Japan's urban areas.

2:35Japan's war

2:36machine was crippled.

2:37The planned

2:38Allied ground invasion,

2:39projected to cost

2:40millions of casualties

2:41on both sides, never came.

2:43In McNamara's ledgers,

2:45it was a success.

2:46It shattered civilian morale,

2:48caused massive loss of life

2:49and accelerated

2:50Japan's surrender.

2:51Setting the stage

2:52for the atomic bombings

2:53in August.

2:54Which led to Japan’s

2:55surrender on August 15th, 1945?

2:59During the war, McNamara

3:00developed a negative view

3:01of the majority of officers.

3:03LeMay was an exception

3:04because they largely

3:05refused to cooperate

3:06with his analytical work,

3:08but the lesson McNamara

3:10drew from the Pacific

3:11was not one of

3:11moral complexity.

3:12It was one of methodology.

3:15The numbers worked.

3:16The data delivered

3:17when the pilots

3:18and commanders were wrong

3:19and the man walked away

3:20believing

3:21that quantitative analysis

3:23was really

3:23the only objective truth

3:25that mattered.

3:26When the war ended,

3:27McNamara and nine

3:29fellow Harvard

3:29trained statistical officers

3:31were hired by the Ford

3:32Motor Company.

3:33They called themselves

3:34the Whiz Kids,

3:35and Ford was desperate enough

3:37to let them loose.

3:39The company

3:40was hemorrhaging money,

3:41its management was chaotic,

3:42its record

3:43keeping a disaster

3:44and its production lines

3:46just overall inefficient.

3:47McNamara changed all of that.

3:49He installed rigorous

3:51financial controls.

3:52He imposed systematic

3:53reporting structures.

3:54He demanded measurable outcomes

3:56at every level of production.

3:58By 1960,

4:00he had risen to

4:00become president

4:01of the Ford Motor Company,

4:03one of the first people

4:04outside of the Ford family

4:05to hold that title.

4:07He was there

4:07for exactly five weeks

4:09when he received a phone call

4:10from the president

4:11elect of the United States,

4:12John F Kennedy.

4:13Having read about McNamara's

4:15brilliance and Time

4:15magazine wanted him in

4:17Washington, McNamara

4:19became Secretary of Defense

4:20in January 1961,

4:22and he brought

4:23everything with him

4:24the spreadsheets,

4:25the systems analysis,

4:27the unshakable belief

4:28that management

4:29was the answer

4:30to every problem,

4:31including war.

4:32His first visit to South

4:34Vietnam was in 1962,

4:36where he told the press.

4:37Every quantitative measurement

4:39shows that

4:40we are winning the war.

4:41I believe I'm correct

4:43in saying that in the past four

4:44and a half years,

4:46the Viet Cong,

4:47the Communist, have lost

4:5089,000 men killed

4:53who could be recruited, trained

4:55and sent back

4:57to fight in South Vietnam.

4:59He was brilliant, confident.

5:01He was exactly the kind of man

5:02Washington loved,

5:03but he was walking into

5:05exactly the wrong war for

5:07his particular genius.

5:12Vietnam was not

5:13just a battlefield.

5:14It was a political struggle,

5:16a civil conflict,

5:17a post-colonial crisis,

5:19and a nationalist war.

5:20All at once,

5:21the French, trying

5:22to regain its colony

5:23after World War

5:24Two, had already fought

5:26and lost their at Dien

5:27Bien Phu in 1954.

5:29After that

5:29defeat, the Geneva Accords

5:31temporarily divided the country

5:33at the 17th parallel

5:34with plans for reunification.

5:36During the 1956 elections,

5:38but the division was unstable

5:40from the start.

5:41The US and the state of Vietnam

5:43in the South

5:44did not sign the agreement,

5:45fearing a communist

5:46election victory.

5:48This, combined with the failure

5:49to hold the 1956

5:51elections, directly

5:52led to the Vietnam War.

5:55The United States

5:56not enter Vietnam all at once.

5:58It escalated gradually

5:59through advisors

6:01support missions,

6:02then combat troops.

6:04Each step

6:05justified by the last.

6:07None of them

6:08adding up to a clear

6:09definition of what

6:10winning actually looked like.

6:12And that was McNamara's

6:13real problem.

6:14In conventional wars,

6:15like in World War Two,

6:17progress was obvious.

6:19Maps changed,

6:20armies surrendered.

6:21Cities fell.

6:22Progress was visible.

6:25Vietnam had none of that.

6:27No front lines,

6:28no territory

6:29to hold the enemy

6:30wasn't an army

6:31you could locate on a map.

6:33It was an idea

6:34embedded in the villages,

6:36in the jungle

6:37and in the population itself.

6:39For a man

6:39who had built his entire career

6:41on the principle

6:42that if you can measure it,

6:43you can manage it.

6:44An invisible war

6:45was simply unacceptable.

6:47So as the war expanded,

6:49so did the obsession

6:50with metrics.

6:51How many sorties,

6:52how many enemy dead?

6:53How many villages cleared?

6:56Those numbers created

6:57the illusion of precision.

6:59McNamara and his team,

7:019000 miles away in Washington,

7:03wanted measurable

7:04signs of progress.

7:05That seems reasonable

7:07until the easiest thing

7:08to measure becomes

7:09the thing that matters most.

7:11And that metric

7:12became body count.

7:14U.S.

7:14Army General

7:15William Westmoreland

7:16embraced this approach.

7:18The strategy would be

7:19based on attrition.

7:20If American firepower

7:22could kill the enemy

7:22faster than they could

7:23replace fighters,

7:24there would come

7:25a mathematical crossover

7:27point, a threshold

7:28where the North Vietnamese

7:30simply ran out of men,

7:32win the ratio, win the war

7:34on a whiteboard

7:35in the Pentagon.

7:36It's a reasonable theory.

7:37In practice,

7:38it created

7:39one of the most

7:39dangerous feedback

7:40loops in military history.

7:42Because here's what happens

7:44when you make body count

7:45the measure of success.

7:47Everyone starts

7:48optimizing for body count.

7:50Commanders need good numbers

7:51to advance their careers.

7:52Officers need

7:53good numbers

7:54for their commanders.

7:55Soldiers in the field

7:56needed good numbers

7:57for their officers.

7:58And so the numbers

7:59got really good.

8:00And this gave birth to search

8:02and destroy missions

8:03for four years,

8:04from 1964 to 68.

8:06Instead of holding ground

8:07or winning over

8:08the local population,

8:09units were sent out

8:10with one objective

8:11find the enemy,

8:12kill them and count the bodies.

8:14That was it.

8:14And so strategy wasn't

8:16measured by what you secured.

8:18It was measured

8:19by what you left behind.

8:20And the military

8:22wasn't winning a war.

8:23They were feeding a number.

8:25Estimates were rounded up.

8:26Civilians were reclassified.

8:28Soldiers later described

8:30a battlefield rule.

8:31If it's dead

8:32and Vietnamese, it's Viet Cong.

8:35They didn't

8:35care what you were doing

8:36or how you were getting it.

8:37They wanted bodies

8:38and that's

8:39where civilians came in also.

8:42If ten of us would go out

8:43and I'd come back

8:44with only five men,

8:45we'd lost half or men.

8:47And you couldn't say that

8:48you didn't see any enemy,

8:49so you could

8:50have only killed one enemy.

8:51And by the time it would get up

8:52to the high command,

8:53you know, you killed 50 of them.

8:55So the body count is a

8:56bunch of sh.

8:57McNamara

8:58did not invent dishonesty,

8:59but he built a system

9:01where the most measurable thing

9:03became the most

9:04important thing.

9:05And once that happens,

9:06the numbers stopped

9:07describing the war,

9:08and they start shaping it.

9:10McNamara was not

9:11without critics.

9:12Among them was Hans Morgenthau,

9:14who advanced a realist approach

9:16that rejected McNamara's

9:18detached data points

9:19in favor of judgment,

9:21restraint, and recognition

9:22of what was happening

9:23on the ground.

9:25Morgenthau view

9:26was that successful

9:27foreign policy

9:28required a deep understanding

9:29of power and human nature,

9:31not formulas and data.

9:32In his 1948

9:34work Politics Among Nations,

9:36he argued that

9:36national interest,

9:38not ideology

9:39or numerical targets,

9:40should guide policy.

9:42Morgenthau served

9:44under both Kennedy and Johnson,

9:45but was soon dismissed

9:47due to

9:47his criticism of McNamara's

9:49management

9:50by the numbers approach.

9:51And here's

9:52the number McNamara

9:53could never put

9:53into a spreadsheet.

9:55Ho Chi

9:55Minh had told

9:56the French before,

9:57and the Americans

9:58when they came,

9:59you will kill

10:00ten of us

10:01for every one of us

10:02that kills you.

10:03But even at those odds,

10:05you will lose and we will win.

10:07That is not posturing.

10:09That is a completely different

10:10kind of calculation.

10:12The North Vietnamese

10:13weren't measuring kill ratios.

10:15They were fighting a completely

10:16different type of war,

10:17one built on

10:18endurance, legitimacy,

10:20and who believed deeply enough

10:21in what they were fighting for,

10:23especially when

10:23things got tough.

10:24And that's what happened.

10:26Tactically, the United States

10:27and his allies

10:28won the vast majority

10:29of every major battle

10:30in Vietnam.

10:30However, strategically,

10:32the US lost the war

10:33because it failed to achieve

10:34its political objective

10:36of a stable, noncommunist

10:37South Vietnam.

10:39The body count

10:40could track the dead.

10:41It could not track belief.

10:44The US could not measure

10:45whether villagers

10:46trusted the government.

10:47They could not measure

10:48whether an army would stand.

10:50Once American

10:51support disappeared.

10:52They couldn't quantify

10:53what it meant

10:54to be fighting on your own land

10:55against a foreign power

10:57for the third

10:58consecutive generation.

10:59And so through the mid 1960s,

11:01Washington spoke

11:02in the language of metrics

11:04and momentum,

11:05while something very different

11:06was happening in the jungle.

11:08By the late 1960s,

11:09for the first time in history,

11:11Americans

11:11could watch the war happen

11:13in almost real time

11:14on television,

11:15and what they saw

11:16didn't match the story

11:18they were being told.

11:19And that gap had a name,

11:21the Credibility Gap,

11:22and it was about to

11:24become impossible to close.

11:25And then came Tet.

11:31On January 31st, 1968,

11:33North Vietnamese

11:34and Viet Cong guerrilla

11:35forces launched

11:37coordinated attacks

11:38across South Vietnam.

11:39Over 100,000 North

11:41Vietnamese and Viet Cong troops

11:43infiltrated South

11:44Vietnam cities.

11:45The troops blended in,

11:46posing as civilians traveling

11:48to celebrate the Lunar New Year

11:50holiday known as Tet.

11:51More than 100 cities

11:53and towns were struck

11:54in one massive movement.

11:56Saigon was hit.

11:57The ancient

11:58imperial city of Hue

11:59was overrun

11:59and occupied for 26 days.

12:01Even the US embassy

12:03compound in Saigon,

12:04the symbolic heart of the US

12:06and Vietnam, was breached,

12:08and cameras

12:09were there to

12:10capture all of it.

12:11What's the hardest part of it?

12:13Not knowing where they are.

12:14That's the worst.

12:16Right around the run

12:16in the sewers and the gutters.

12:18Anywhere. Be anywhere.

12:20Soaking.

12:21Stay alive them day to day.

12:23I just want to go back home

12:24and go to school.

12:25Did you lose any friends?

12:27I feel like one

12:28of the other things

12:30I would

12:30think stink.

12:34Militarily,

12:35the offensive was a catastrophe

12:37for the communists.

12:38Over 45,000

12:39North Vietnamese and Villa

12:41Cong fighters were killed.

12:42The US and South

12:43Vietnamese forces

12:44lost around 4 to 9000 troops.

12:47By every metric, McNamara's

12:49system had been built

12:50to track the allies one.

12:52General Westmoreland

12:53called it an American victory,

12:55and by the body count

12:56he wasn't wrong.

12:57But strategically it shattered

12:59the US public narrative.

13:00For three years,

13:01officials

13:02had described an enemy

13:03in decline.

13:04Enemy forces were depleted,

13:06morale was crumbling.

13:07The crossover point was coming.

13:09Progress was being made.

13:12Tet proved the opposite.

13:13This wasn't

13:14the action of a broken army.

13:16It was the action of one

13:17that had been waiting.

13:18And for Americans

13:19watching at home.

13:20The message was unmistakable.

13:22The war was not

13:23what they'd been told.

13:24Walter Cronkite,

13:25the most trusted voice

13:26in American journalism,

13:27flew to Vietnam

13:29to see for himself.

13:30He came back and did something.

13:32Anchors almost never did,

13:33he editorialized.

13:35He told his audience

13:36that the war appeared

13:37to be a stalemate,

13:38and that the only

13:38rational way out

13:39was negotiation.

13:41When President Johnson

13:42heard what Cronkite said.

13:43He reportedly turned to an aide

13:45and said,

13:46If I've lost Cronkite,

13:47I've lost middle America.

13:49And he was right.

13:50Just one month later,

13:51Robert McNamara,

13:52the longest serving

13:53secretary of defense,

13:54stepped down on February

13:5629th, 1968,

13:58with a brief

13:58emotional statement.

14:02Mr. president.

14:06I cannot

14:07find words to

14:10express what lies in my heart

14:12today.

14:16And I think I'd better respond

14:18on another occasion.

14:22And by March,

14:23President Johnson went on TV

14:25and told the country

14:26he would not seek reelection.

14:28The war would drag on

14:29for another five years

14:30as the US slowly disengaged,

14:32shifting combat roles

14:33to the South

14:34Vietnamese in a process

14:35called Vietnamization.

14:38All done

14:39while the US increased

14:40its aerial bombardment,

14:41expanding bombing campaigns

14:42into Cambodia and Laos

14:44and striking the communist

14:45capital city of Hanoi itself.

14:48The Nixon administration

14:49called it peace with honor.

14:50Facing that

14:51relentless destruction,

14:52North Vietnam

14:53was forced to agree

14:54to a peace deal

14:55before the final withdrawal

14:56of military units in 1973,

14:59leaving behind a heavily

15:01armed South Vietnamese

15:02army known as Arvin.

15:04The Nixon administration

15:05was soon

15:06paralyzed by the Watergate

15:07scandal,

15:08and the military support

15:09the US promised

15:10simply never came.

15:11By 1975,

15:13South Vietnam

15:14saw a rapid collapse

15:16during the North's

15:17final spring offensive.

15:18Soviet and Chinese supply

15:20tanks rolled into

15:21Saigon, captured

15:22the evacuated U.S.

15:23embassy, and renamed the city

15:25Ho Chi Minh City.

15:26And just like that,

15:28after 20 years of struggle

15:29and 3.8 million

15:31total casualties,

15:32the conflict was

15:33officially over.

15:35The famous lesson of Tet is not

15:37that metrics are useless.

15:38It is that a war

15:39can be lost politically,

15:41even when the numbers appear

15:42to support the strategy.

15:44The metrics hadn't

15:44just failed to capture reality.

15:46They had actively constructed

15:48a false one.

15:49Once body count

15:50became the central measure

15:51of progress,

15:52the logic of the war changed.

15:54Commanders wanted good numbers.

15:56Political leaders wanted proof

15:57that the strategy was working,

15:59so the system rewarded

16:00the appearance of success.

16:02That is the danger

16:03of a single metric.

16:04It turns an entire organization

16:06into a machine

16:07for improving the metric.

16:09Instead of

16:10achieving the mission

16:11and when the moment comes,

16:13as it did

16:13on the night of January

16:1431st, 1968,

16:17the collapse isn't gradual.

16:18It's sudden,

16:19and it cannot be undone

16:21with better numbers.

16:26There's a term for this

16:27kind of mistake.

16:28The name for the gap

16:29between the data and the truth.

16:31It's aptly called

16:32the McNamara fallacy.

16:34Measure what is easy,

16:36ignore what matters.

16:37Then assume

16:38what matters must not exist

16:40because it can't be measured.

16:41Now, if you talk to

16:42modern data analysts,

16:44they'll tell you that

16:44McNamara was tracking

16:45the wrong things.

16:47Instead of just body count,

16:48they argue

16:49that he should

16:49have been measuring

16:50what's known as dark data.

16:52The stuff that doesn't

16:53neatly fit

16:54into reporting systems,

16:55but actually decides

16:56who wins and loses,

16:57like the actual will

16:58of the North Vietnamese

16:59to endure hardships

17:00which drove the conflicts

17:02longevity and undermine

17:04the US attrition

17:04strategy

17:05rather than body counts

17:07or enemy troop numbers.

17:09Tracking the actual perception

17:10of the local

17:11populations, attitude

17:12toward the Viet Cong,

17:14and the attitude

17:15toward American forces

17:16instead of bomb tonnage,

17:18track their resupply efforts

17:20and their ability

17:21to replace losses,

17:22or how safe a village

17:23really was after dark

17:24once the patrols left.

17:26But here's the twist.

17:27And this is

17:28what makes the fallacy

17:29so dangerous.

17:30Even if McNamara had picked

17:31better metrics,

17:32the North Vietnamese

17:33were quick to adapt.

17:34They weren't

17:34just fighting a war,

17:36they were also hacking

17:37the data.

17:38They used decoy

17:39radio chatter

17:40to feed the US false leads.

17:42They figured out the US

17:43operation called Igloo

17:45White,

17:45a line

17:46of thousands

17:47of electronic troop

17:48detecting sensors,

17:49also called the McNamara line.

17:51And they would

17:53literally shake the trees

17:54and drop items nearby

17:56to trigger fake movement.

17:58They turned

17:58the US's own obsession

18:00with data

18:00against them,

18:01feeding the machine

18:02exactly what it wanted to see.

18:04So you had this perfect storm

18:06officers on the ground

18:07inflating numbers

18:08to hit quotas,

18:09and an enemy

18:10actively poisoning the well

18:12with misinformation.

18:13Didn't matter

18:14how fast the computers were.

18:15The data was compromised

18:17before it even hit

18:17the command centers.

18:18But this pattern does

18:19not just appear in war.

18:21It appears in business,

18:23education, climate policy,

18:25and in intelligence analysis

18:27anywhere.

18:28Performance is reduced to

18:29what can easily be counted,

18:30but in war,

18:31the consequences

18:32are catastrophic.

18:33Because war is not

18:34just logistics.

18:35It's politics, identity,

18:36fear, loyalty,

18:38corruption and belief.

18:40It's the willingness

18:41of the people

18:42to keep fighting after

18:43the numbers stop making sense.

18:45Vietnam did not just expose

18:46a failure of strategy,

18:48it exposed a failure

18:49in how we decide what

18:51counts as reality.

18:57United States military

18:58are going to be pressured

19:00to give the machines more

19:03leeway in

19:04making those life

19:05or death decisions.

19:06Now here's

19:07where the story stops

19:08being history.

19:09The McNamara fallacy

19:11never actually went away.

19:12It just got a

19:13technical upgrade.

19:14Today,

19:14that same

19:15obsession with metrics

19:16is coming to us through

19:17artificial intelligence.

19:19Modern militaries can process

19:20more data

19:21than McNamara ever imagined.

19:23AI can analyze

19:24satellite imagery,

19:25track movement

19:26patterns,

19:26listen to phone calls,

19:28read social media accounts,

19:30identify targets

19:31faster than any human staffer

19:33ever could.

19:34But it creates

19:35a familiar illusion.

19:36What it cannot

19:37reliably tell you

19:38is the human dimension.

19:39Whether the people involved

19:40will fight,

19:41surrender, defect, or wait.

19:44Afghanistan made the warning

19:46even clearer.

19:47On paper,

19:48the Afghan National

19:49Security Forces

19:50numbered over

19:50300,000 personnel.

19:52They were trained, equipped

19:54and funded for years,

19:55but many units existed

19:57only on paper.

19:58Others were corrupt in lacked

20:00belief in the government

20:01they served, and when U.S.

20:02support was withdrawn,

20:04the system collapsed

20:05within 11 days,

20:06as opposed to the estimated 3

20:08to 6 months

20:09that were projected.

20:10This is the McNamara problem.

20:12Modernized.

20:13At least McNamara's

20:14spreadsheets were human made.

20:16The choices were arguable.

20:18A sufficiently complex

20:19AI model doesn't feel that way.

20:21It feels like truth

20:23without an agenda,

20:24and slowly

20:26skepticism starts to disappear.

20:28Not because anyone decides

20:30to stop questioning,

20:31but because the system

20:32makes questioning

20:33feel like the

20:34irrational choice.

20:35And that is how systems fail.

20:41The information

20:41space is a warzone.

20:43Their aim is to take over

20:45the machinery of the state.

20:47They're not trying to win

20:48a debate.

20:49They're trying to take

20:49over a country.

20:51Not every enemy is looking

20:52for a win

20:52on an open battlefield.

20:54Honestly, they know better.

20:56Instead, they aim

20:57at that dark data

20:58at the foundations,

21:00the trust in each other,

21:01the legitimacy of institutions.

21:03In the US,

21:04over 70% of

21:05the population

21:06is on social media.

21:08AI can generate convincing

21:09text, synthetic

21:10audio, realistic images

21:12and waves of tailored content

21:14designed to push audiences

21:16in different directions

21:17at the same time.

21:18Right from the phones

21:20in our pockets.

21:21The more

21:21moral, outrageous language

21:23you use,

21:23the more inflammatory language

21:25contemptuous language,

21:26the more indignation you use,

21:28the more it will get shared.

21:29In democratic,

21:30open society,

21:31that can be

21:32as strategically important

21:33as any battlefield,

21:34because now

21:35the fight is not only over

21:36territory, it is over.

21:38Perception in Vietnam

21:41proved this.

21:42The United States

21:43not just fighting enemy army.

21:45It fought a war for credibility

21:47of a public, stops

21:48believing its leaders

21:49and the institutions telling it

21:51that the war is being won.

21:52Then the enemy doesn't

21:53even need to hit the army

21:54first. Bullets still matter.

21:57But in an era of perception,

21:59information is

22:00the ultimate weapon.

22:05McNamara tried

22:06to bring order to war

22:08through data.

22:09What he learned too late

22:11and at an enormous cost,

22:13was that the fog of war

22:14cannot simply be eliminated

22:16with more information.

22:17Sometimes the fog gets worse

22:19because when people believe

22:20the numbers are enough,

22:22they stop

22:22asking the harder questions.

22:24That is the warning

22:25Vietnam leaves us.

22:27Not that data is dangerous

22:28and not that

22:29numbers are useless.

22:30The warning is

22:31that data is not wisdom.

22:33And if leaders and governments

22:35build systems

22:36that can count everything

22:37except the things

22:38that actually win or lose wars,

22:40we risk

22:41taking the failure of Vietnam

22:42and scaling it up

22:43for the modern world

22:45with faster

22:46machines, cleaner dashboards,

22:48and far greater confidence.

22:49If McNamara's story

22:51warns us of anything,

22:53it's that the human element

22:54never appears on screen.

22:56That is the ghost

22:57in the machine.

22:58And as Robert

22:59McNamara said

23:00towards the later of his career

23:01about Vietnam, we were wrong.

23:04Terribly wrong.

23:06The numbers will keep

23:06getting better.

23:08The question is, will we?

23:11If you enjoyed this journey

23:12through history,

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23:16and untold stories

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23:18A like or comment

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23:21And if you believe

23:22the lessons of history

23:23still matter.

23:24Becoming a supporting member

23:26helps us go deeper,

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23:30overlooked stories and preserve

23:32the hard won

23:33wisdom of the past

23:34from all of us at Clear

23:35and Present history and myself.

23:37Steve Kristoff, thank you.

23:39Until next time.