This thread is for asking any questions that might seem obvious, tangential, silly or what-have-you. Don't be shy, everyone has holes in their knowledge, though the fewer and the smaller we can make them, the better.
Please be respectful of other people's admitting ignorance and don't mock them for it, as they're doing a noble thing.
To any future monthly posters of SQ threads, please remember to add the "stupid_questions" tag.
Speaking only from personal experience, it reduces akrasia rather than eliminates it.
An odd factor is an inability to engage in pure entertainment, but I wonder if this is merely a latent psychological issue specific to me that only surfaces when taking modafinil. This seems like it's a benefit, but it can be an annoyance in regards to social interaction, almost like a classic djinn wish. Since it only lasts half a day (for me) after the first week, this isn't really a problem, though.
I recommend never taking anything with caffeine in it while on modafinil, but you might not respond as strongly to it as I do.
The most easily observed benefit for me has been not falling asleep while driving, watching movies, sitting, standing idly, etc.