but i think there's worse things someone could do to generate a private key than rolling a dice. like using a computer connected to the internet and generating it right off a live website such as bitaddress.
That is undoubtedly a terrible idea, but that doesn't mean we should be promoting other risky ideas in its place.
never heard of that method but after analyzing it, I guess it does work since the probability of TH and HT are equal. Which is all you're counting. When you get HH or TT, you ignore it. maybe that same method could be applied to rolling a single die but it's not clear how.
It can, but it is significantly more complicated. Essentially you would roll the dice three times, and make a note of all three numbers. If any number is repeated, you discard the rolls and start a new set of three. You then note if the second number is higher (H) or lower (L) than the first number, and then if the third number is higher than both the first and second numbers (HH), lower than both the first and second numbers (LL), or between the first and second numbers (B). This allows you to generate 6 possibilities from your three dice rolls:
HHH
HLL
HB
LHH
LLL
LB
You map each of these six possibilities to a number from 1 to 6, and repeat until you have as many numbers as you need.
This works because rolling 1,3,5 is equally as likely as rolling 1,5,3 or 3,1,5 or 3,5,1 or 5,1,3 or 5,3,1, regardless of the bias towards any individual face of the dice.