Static classes in c#

Question

In answering this question (https://stackoverflow.com/questions/352317/c-coding-question#352327), it got me wondering...

Is there any danger in regarding a static cl

Answer 1

The only thing that seems immediately apparent to me is that a static class is basically just a collection of scoped functions (explicitly avoiding "methods" here) and a singleton is still something you can instantiate, even if you can only have 1. 1 > 0.

You can pass a singleton as an argument to something that expects an object of a certain interface, you cannot pass a static class anywhere (except through some reflection trickery)