Clearly a veteran of C++ in particular or the “zero-cost abstraction” cluster of languages in general is not going to miss a bunch of needless allocations etc. in a setting where performance matters a lot and I basically agree about the high notes of where you’d start to tune this up.

But the author is clearly a highly-motivated intermediate C++ user who is taking time to share some key lessons and anyone who keeps that up for long won’t be intermediate for long!

So it’s still a cool blog IMHO :)