[Doctor Stochastic]

Only if the DESIGN if the coin has been 3D modeled INTO the computer.

Not necessary. Inferences can be made from observing outcomes, no design data is needed. To predict a coin with no worse than 50% chance, two strategies are available: first, pick the last outcome and second, pick the outcome which has dominated so far. Both are better than picking heads or tails at random.

[balrog666]

To predict a coin with no worse than 50% chance, two strategies are available: first, pick the last outcome and second, pick the outcome which has dominated so far. Both are better than picking heads or tails at random.

I was going to suggest "tit for tat" selection.