Followup to: The Bottom Line
A recent conversation reminded me of this simple, important, and difficult method:
When someone asks you "Why are you doing X?",
And you don't remember an answer previously in mind,
Do not ask yourself "Why am I doing X?".
For example, if someone asks you
"Why are you using a QWERTY keyboard?" or "Why haven't you invested in stocks?"
and you don't remember already considering this exact question and deciding it,
do not ask yourself "Why am I using a QWERTY keyboard?" or "Why aren't I invested in stocks?"
Instead, try to blank your mind - maybe not a full-fledged crisis of faith, but at least try to prevent your mind from knowing the answer immediately - and ask yourself:
"Should I do X, or not?"
Should I use a QWERTY keyboard, or not? Should I invest in stocks, or not?
When you finish considering this question, print out a traceback of the arguments that you yourself considered in order to arrive at your decision, whether that decision is to X, or not X. Those are your only real reasons, nor is it possible to arrive at a real reason in any other way.
And this is also writing advice: because I have sometimes been approached by people who say "How do I convince people to wear green shoes? I don't know how to argue it," and I reply, "Ask yourself honestly whether you should wear green shoes; then make a list of which thoughts actually move you to decide one way or another; then figure out how to explain or argue them, recursing as necessary."
that sounds liek a great method. i shall have to try it out when someone asks me that question, or when i ask myself that question regarding something i do automatically.
on the other hand, i could see someone simply meaning 'why do you use qwerty' as 'what's the history of your using qwerty'. i wonder if this linguistic issue might cause us to conflate facts of the past with motivations. when i give a reason why i use qwerty historically it might just be 'well, that was what was available' whereas an answe to a 'why' question aimed at getting justifications might be 'well, i don't know if it's justified.'
perhaps this sheds some light onto the problem of confusing is with ought. we might confuse 'why is it' for 'why should we'.
I tend to say ‘Why do you use QWERTY?’ for the question that Eliezer was writing about, and ‘How come you use QWERTY?’ for the question of history. As far as I know, this isn't justified by any recognised rule of English grammar, but it feels right to me.
You can also use more precise phrasing: ‘Why do you choose to use QWERTY?’, ‘How did it come about that you use QWERTY?’. But who wants to use more words than necessary?