[Virginia-American]

Prediction (which I posted on another thread):

In, say, a million years our descendants will not have wisdom teeth.

Justification: Very occasionally, even with modern dentistry available, people die from infections caused by improperly-placed wisdom teeth.

When this happens before they have children, their genes are not passed on.

Granted, it's a very slow (inefficient) kind of natural selection, but it is there.

The same prediction and justification works for the appendix, I believe. (Unless the appendix actually does something useful, so useful that it impacts mortality)

(I've seen claims that the appendix has some sort of immunological or e-coli reservoir function, but I've never seen anything that says people who have had appendectomies tend to die before passing on their genes)

[Fester Chugabrew]

If only you could have your prediction subject to direct observation. Go for it. There must be a scientific body that can etch your prediction into a substance that will last a million years. If only you could be alive to collect royalties!