I think he meant relative cost (including time)

Yeah, I was thinking it would be hard to store that amount of data in QR code even if image quality was reduced.

My cousin had an idea to make (print) an album but wanted to do it with QR codes because it would be cheaper to print (only black and white printing is required).

So you first said they try to do/offer to do something like walk you home, buy you something, etc. and you said you don’t want that. Now here you say you want them to do something, in particular when they see something bad happening (i think you meant when they see girl treated poorly by a boy/man). That seems kind of confusing.

In a lot of balkan languages this is similar to how you would say girl friend (we spell it frendica) so it’s kind of interesting

…ahh, you gotta love that head bashing. It definitely helps if you’re masochist.😂

True, but algorithms they used in this article are just a “level” higher than primitive statistics methods and even that is not mainstream in kernel parameter (and similar things) optimisation. So it might be some time before we see more advanced methods used for this stuff.