although it promises huge profits, but bet big money also has a very high risk. I might prefer to bet with smaller nominal profits despite a little, because my purpose just for fun and I did not want to take risks that could make my life changed. but it probably is a quick way to get rich, but it takes courage to do that
the size of the bet (being big or small) should only be determined based on how much money you have in your bankroll. in a small bankroll even 0.0001 BTC becomes a big amount but that much can be a tiny amount in a bigger bankroll.
to simply put it is a percentage of your bankroll that you can continue betting even if you lose that.
Yeaaaa each person have different economy situation , i can say 1 btc is small if i have more tahn 10,000 btc.
And so on , i agree instead put a nominal will be better if you just set a percentage.
For example if you usually bet 0.001 from 1 bitcoin total bankroll means it is 0.1 % then you can go bet higher 1% at 0.01 instead 0.1%.