@mikethewayne Thanks for the feedback! The power goal was indeed intended as the end game, however I didn't get around to implementing any ending, so it just keeps going.
The speed of the computer is definitely affecting the game, so far I haven't found a good way of dealing with this, it certainly seems to be one of the tougher issues to solve.
Nice try overflowing the power, but it's actually a floating point number and not an integer! So the maximum is actually the insane value of 340,282,346,638,528,859,811,704,183,484,516,925,440!