Hello~

That's one of those question where the answer hovers somewhere between "no, with a couple of massive caveats" and "yes, but not in the way most people think".

A lot of AD&D 1st Edition's GMing practices are pretty hardass by modern standards; however, they need to be understood in the context that the game's authors were writing for a target audience who mainly played the game in college wargaming clubs, where players would frequently transfer between groups and group sizes tended to be very large – six players per GM was considered a bare minimum, and up to a dozen player characters in a single party was by no means unheard of!

In particular, players would often bring their character sheets with them when hopping between groups, and it was considered a faux pas for a GM to reject an incoming player's existing character or request any substantive changes be made, so managing expectations could be quite challenging; even as late as 2nd Edition, the Dungeon Master's Guide contains extensive discussion of how to gracefully handle players bringing existing characters with them who aren't necessarily a good fit for the present game's tone or resource economy.

The upshot is that the culture of play these iterations of Dungeons & Dragons are targeting inherently obliges the GM to take a much firmer hand to keep things on track than a pickup game that draws players exclusively from within the GM's established friend group might – and to be sure, some GMs abused these expectations to act like petty tyrants, but some contemporary GMs do that, too.

A big part of the modern perception that 1E and 2E were extraordinarily player hostile, meanwhile, has nothing to do with the previously discussed GMing practices; rather, it emerges from the transition away from that culture of play in a slightly unexpected way.

In brief, back when D&D was mainly played by wargaming clubs, it was fashionable to run pre-written adventure modules competitively at conventions; the competition wasn't between players, but between parties, with multiple groups running the same adventure in parallel to contend for prizes. Tournament play sometimes chose its winners based on the fastest real-time completion of the module in question, or set specific objectives within the module which would award points when completed, a bit like speed-running or achievement-hunting in a video game (though neither practice existed yet at the time).

It was the survival module, however, that quickly emerged as the most popular tournament format. In a survival tournament, each player would provide or was furnished with a binder containing a fixed number of pre-generated character sheets, switching to the next character sheet in the set as each preceding character died; the winning group was the one whose last surviving character's corpse hit the dirt furthest from the dungeon entrance.

Many of 1E's most popular adventure modules, including the infamous Tomb of Horrors, were originally written as survival modules to be run at tournaments in conventions. As such, they were designed to kill off player characters both quickly and efficiently, so as to reduce the likelihood that the tournament would run overtime and get kicked out of the convention venue. When they were later cleanup and repackaged as commercial adventure modules, their text rarely bothered to explain any of this – who doesn't recognise a survival module when they see one?

The answer to that question, of course, is kids who didn't come up through the mentorship system of the college wargaming clubs, but taught themselves how to play D&D from first principles using books they bought at their local hobby stores – and when D&D's popularity unexpectedly exploded in the early 1980s, there were suddenly rather a lot of them!

Why publish survival modules as your primary format of published adventure?

"Because that's what we had -- they were already laid out for publication. Why not publish them and make some money off it?"

Did it ever occur to you at the time that publishing adventures like these would shape the larger D&D culture's expectations of what play was supposed to look like?

"It’s hard to get that context just from reading the original Dungeons and Dragons books. If nine groups learned D&D from the books, they’d end up playing nine different games.

"Mornard told us about an early D&D tournament game – possibly in the first Gen Con in Parkside in 1978? Gary Gygax was DMing nine tournament teams successively through the same module, and whoever got the furthest in the dungeon would win. You’d expect this to take all day, and so Mike was surprised to see Gary, looking shaken, wandering through the hallways at about 2 PM. Mike bought Gary a beer and asked him what had happened – wasn’t he supposed to be DMing right now?

“It’s over!” replied a stunned Gary Gygax.

"Gary described how the first group had fared. Walking down the first staircase into the dungeon, the first rank of fighters suddenly disappeared through a black wall. There was a quiet whoosh, and a quiet thud. The players conferred, and then they sent the second rank forward, who disappeared too. The rest of the players followed.

"The same thing happened to the next tournament team, and the next. Players filed into the unknown, one after another. And they were all killed. The wall was an illusion, and behind it was a pit. Eight out of the nine groups had thrown themselves like lemmings over a cliff; only one group had thought to tap around with a ten foot pole. That group passed the first obstacle, so they won the tournament.

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.