I know I shouldn’t do it here, but let me ask a serious question : does the square in O(n!²) really matter ? I have a confused intuition that the factorial grows so much faster than the square that it kind of disapears assymptoticaly.

The algorithm really doesn’t work when you are critical or sceptical over a subject. For instance crypto sceptics from r/buttcoin being shown binance ads. Yes, they do show an interest in crypto, but may be the least suceptible persons to that ad.