just a depressed themlin

You know what you are so right... We have a bond, these 50 rats and I....

OH SHIT OH NO

WAIT

Her first 28 years are fairly tame, until we reach 1987's Canadian Mountie Barbie. Reasonable odds for a cop, even if they're not a USAmerican cop.

in 1991, we get US Air Force Pilot Barbie, US Marine Corps Sergeant Barbie, US Navy Petty Officer Barbie. There's also 1992's US Army Barbie, if those guys were feeling left out. I'm also ignoring the 1989 US Army Barbie because that one is 100% a stolen valour runway look, not a uniform.

Going to run my autism over those four.

US Navy Petty Officer Barbie is wearing quartermaster's rating insignia, so no combat for her.

US Army Barbie is wearing an airborne maroon beret with no rank insignia that I could see, but she's loaded down with medical supplies, so I'm gonna say combat medic, but only as many kills as her other medical endeavours.

US Air Force Pilot Barbie is wearing a jacket that looks like a Top Gun tie-in. The unit patch is just the USAF coat of arms, and the name patch says she's a Captain. VERY confusingly, the plane on the box art is an F-5, which had just recently been retired. But its USAF usage was almost all in the OPFOR Aggressor squadrons, which is... "come play enemy planes for our training exercises".

US Marine Corps Sergeant Barbie is wearing E-5 Sergeant's insignia, and three medals (she's in dress uniform). To my eye, and allowing for badly printed colours, looks like Navy and Marine Achievement Medal, Marine Corps Good Conduct Medal, and the South West Asia Service Medal. The first two are fairly obvious "Barbie Is Well Behaved" stuff, but uh. That last one though?

USMC Barbie was in Desert Storm.

It's just the changing density of the air refracting light weirdly, so it looks like there's a reflection of the sky on the ground, which our brains often interpret as a pool of water. It can also happen upwards instead of downwards, especially at sea, when the air is much colder near the surface and a warm front appears above it:

Not because I’m lazy or unworthy or anything like that…

…but because one of my distant uncles was among the eight survivors of the Essex, the ship that inspired the ending of Moby Dick and sank after being rammed by a whale, and what do I fuckin do after my bloodline has this Ordeal at Sea?

She got the idea for the study while walking with her advisor at Stanford to discuss her thesis topic, and the paper she eventually published in the Journal of Experimental Psychology in 2014 is sharp enough that it should have ended the seated meeting on the day it came out.

She ran 4 experiments on 176 people. Same person tested twice. Once sitting, once walking. The creativity tasks were the standard ones psychologists have used for decades to measure how good a brain is at generating novel useful ideas.

81% of participants in the first experiment produced more creative ideas while walking than while sitting. In the second experiment, 88%. In the third, 100%. Every single person walked into a more creative version of themselves. On average, people generated 60% more novel useful ideas the moment their legs started moving.

The skeptical question is the obvious one. Maybe it was the fresh air. Maybe it was the scenery passing by. Maybe it was the change of environment doing the work, not the walking itself.

Oppezzo killed every one of those explanations with one experimental decision. She put people on a treadmill facing a blank wall. No scenery. No fresh air. No environmental change. Just legs moving in place while staring at white drywall. The 60% boost held.

Then she ran the experiment that closed the case completely. She took participants outside in two conditions. Half of them walked through a Stanford courtyard. The other half were pushed through the exact same courtyard in a wheelchair. Same outdoor stimulation. Same scenery passing at the same speed. The only difference was whether the legs were moving.

The walkers produced dramatically more novel high-quality ideas than the wheelchair group. The outdoors did almost nothing on its own. The walking did everything.

She also tested the opposite kind of thinking. Convergent thinking. The kind where there is one right answer and you have to narrow down to it. Word puzzles where 3 words share a hidden fourth word that connects them. The seated participants did slightly better on these. Walkers got slightly worse.

Walking is not a general intelligence enhancer. It does one specific thing. It opens up the divergent search inside your brain. The part that generates options. The part that produces unexpected connections. The part that takes a problem and finds five ways into it instead of one.

When you need to converge on the single right answer, sit down. When you need to find the answer in the first place, get up.

The mechanism is now well understood. Walking selectively activates what neuroscientists call the default mode network, the system inside your brain that runs when you are not consciously focused on anything. The DMN is where mind-wandering happens. Where memories cross-reference each other. Where ideas that have been sitting in separate folders inside your head finally bump into each other.

When you sit at a desk and force yourself to concentrate, you suppress the DMN. When you walk at a natural pace, the executive part of your brain gets just busy enough handling the walking that the DMN comes online and starts doing the work that focus was blocking.

The most useful finding in the entire paper is the one almost nobody quotes. The boost did not turn off the moment people stopped walking. Participants who walked first and then sat back down stayed elevated. Their next round of seated creativity work was still significantly better than people who had been sitting the whole time. The rest lingered for at least several minutes after the legs stopped moving.

You do not need to do creative work while walking. You need to walk before the creative work. The brain holds the state.