As of Carpet mod commit 47c8484, the function fact(x) can take a long time to execute for vary large values of x. This is because the function loops through all numbers from 1 to x, multiplying them through, even though fact(x) == Infinity for x > 170 due to the Java double limit.

To solve this, the function should check if its input exceeds the value 170, or alternatively if the factorial variable in the loop goes infinite, and if so, return Infinity immediately.