[resill]

Actually, he said his laptop maxed out at 1110 H/s. He then said that using multiple GPUs one could likely achieve 2 MH/s and higher.

[Stagnant]

That statement sounds a bit exaggerated to me. A 4090 can do ~15000 H/s, to reach 2 MH/s would require well over 100 4090's, it definitely isn't as easy as the author claims.