that's a performance optimization. you have other performance optimizations available often, with tradeoffs.
FP is a higher level paradigm so you might have to trade off with performance too
FP is a higher level paradigm so you might have to trade off with performance too
Then it can hardly he said be to unequivocally be better, can it.
Functional programming is a higher level abstraction. If the underlying implementation is not well implemented/optimized then you could have bad performance while the opposite is also true.
Yes, it is like saying that. At least, assuming by "cannot be" you mean "is not".
>not doing your own memory management is bad
No, it's not like saying that. Note how differently those claims are phrased.