As far as I can understand from the repositories you linked to, some are trying to match your keys by generating their own keys (extremely fast).

I'm no expert (far from it), but I do know that these methods take millions of years to achieve that if using the fastest computers available today.

Yeah I found some arcticles on Google, look at this, is nearly impossible, but what will we be doing, after they come with better computers..you know Quantum computing evolving and they will be able to guess that phrases faster 😮‍💨

#asknostr

https://nostrcheck.me/media/public/nostrcheck.me_8650307252678138521691585730.webp

Again, if a BTC wallet can be broken with brute force, everything that depends on similar or lesser forms of security would be basically unproteced. That in thrn could literally collapse the covilization within days.