Alas they'll attempt to justify it by saying they want your capability now, not X years ago. Maybe it's not entirely unjustified -- I have some old mathematical

Alas they'll attempt to justify it by saying they want your capability now, not X years ago. Maybe it's not entirely unjustified -- I have some old mathematical code on github that I don't think I could explain the technical details of without many hours of review, I wouldn't want to be hired to produce more code of that sort without an understanding that ramp up will be needed to return to my previous level. Given something like quicksort, though, I'd just get the feeling of "dance, monkey, dance".