[lpw25]

> Anecdotally, the runtime also falls down when you need to use large arrays or strings, or do lots of floating-point calculations.

Anecdotally from one specific well-known troll. (I'm not saying it is or isn't true, just that almost all of these claims originate from a single individual with an axe to grind).

[evincarofautumn]

I was referring to my own (limited) experience and stuff I’ve read from Jane Street. If people have axes, let them grind them.