In which I have an Asperger-y moment right here

I had the misfortune of going to a meeting the other day, and somebody said “Well, you can’t have your cake and eat it, too.” This makes no sense. What is the point of having cake if not to eat it? Why would one simply want to be in possession of a cake, if one were not going to eat it? I sort of understand that the intent to mean that if you consume something, you can’t save it or keep it. Fine. But saving cake leaves you with stale, moldy cake in short order. What possible virtue is there to moldy cake?

People are confusing.