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- Do not quote yourself.
- Do not quote from Less Wrong itself, HPMoR, Eliezer Yudkowsky, or Robin Hanson.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 Do not quote with only a name.
The distinction between precision and accuracy is one of the most useful distinctions I've learnt.
If your goal is to get at the truth, then accuracy is always the primary goal, and precision secondary. Indeed, it is quite dangerous to aim for precision first. This was also captured by Knuth, "premature optimization is the root of all evil."
Unfortunately, most people are convinced more easily by precision than by accuracy. Politicians and false prophets often employ this trick. Precision reflects confidence. Also, it is trivial to very whether a statement is precise; but incredibly difficult to verify if it is accurate.