Questions of Observation

Well late last night, while I was eating toast I came up with these four questions which I have decided are pretty important. They help us understand the universe in which we live and are also sometimes a lot of fun to answer. They are two Hows and two Whys, and whenever you consciously observe something should be asked if your brain doesn't already.
They are:

• How is it now?
• Why is it like that?
• How did it get like that? (to some extent what did it used to be?)
• Why can't it be different?

These are very rough versions and should be modified to suite the circumstances. I'd love to give some examples and I had a few last night but right now I can't remember any, I may post more on this later. If I remember that is.