I wish that _why didn't leave potion behind. One of the coolest thing about potion is that everything is a function. For example, if you have an integer named

I wish that _why didn't leave potion behind. One of the coolest thing about potion is that everything is a function. For example, if you have an integer named a that has a value of one, the a() will return 1. I hadn't seen that in any other language. Are there other languages with this feature?