Time (in particular in a chess game) is a precious resource -- to justify spending it you need cost-benefit analysis.

Position is also a precious resource in chess. You need to structure your play so that the trade-off between time and position is optimal, and cutting off your search the moment you think of a playable move is not that trade-off. Evidence in favor:

  1. I've personally competed in several mid-to-high-level chess tournaments and have an ELO rating of 1853. Every time I've ever blundered, it's been because of a failure to give the position a second look. Furthermore, I can't recall a single time the act of giving the position a second look has ever led me to time trouble, except in the (trivial) sense that every second you use is precious.
  2. I have personally interacted with a great deal of other high-rated players, all of whom agree that you should in general think through moves carefully and not just play the first good-looking move that you see.
  3. Lasker, a world-champion-level player, was the one quoted as giving this advice, and according to Wikipedia (thanks, bentarm), the saying actually predates him. If the saying has survived this long, that's evidence in favor of it being true.

Your position offers no criteria and no way to figure out when you've spent enough resources (time) and should stop -- and that is the real issue at hand.

Nor am I claiming to offer such a way. I agree that the optimal configuration is difficult to identify, and furthermore that if it weren't so, a great deal of economics would be vastly simpler. My claim is a far weaker one: that whatever the optimal configuration is, stopping after the first solution is not it. This may sound trivial, and to a regular LW reader, it very well may be, but based on my observations, very few regular (as in not explicitly interested in self-improvement) people actually apply this advice, so it does seem important enough to merit a rationality quote dedicated to it.

the optimal configuration is difficult to identify

By the way, in certain situations it's analytically solvable -- see e.g. here.

1Lumifer5yYou're successfully demolishing a strawman. Is anyone claiming what you are arguing against?

Rationality Quotes Thread March 2015

by Vaniver 1 min read2nd Mar 2015235 comments

8


Another month, another rationality quotes thread. The rules are:

  • Please post all quotes separately, so that they can be upvoted or downvoted separately. (If they are strongly related, reply to your own comments. If strongly ordered, then go ahead and post them together.)
  • Do not quote yourself.
  • Do not quote from Less Wrong itself, HPMoR, Eliezer Yudkowsky, or Robin Hanson. If you'd like to revive an old quote from one of those sources, please do so here.
  • No more than 5 quotes per person per monthly thread, please.
  • Provide sufficient information (URL, title, date, page number, etc.) to enable a reader to find the place where you read the quote, or its original source if available. Do not quote with only a name.