Perhaps that is true. But don’t you find that a bit convenient?
Imagine this conversation:

[b:2wnroy00]Student:[/b:2wnroy00] Professor can we take a look at some negative mutations in the works in the lab?
[b:2wnroy00]Professor:[/b:2wnroy00] Sure, we have several examples for you to look at.
[b:2wnroy00]Student:[/b:2wnroy00] Can we take a look at some positiive mutatoins in the works in the lab?
[b:2wnroy00]Professor:[/b:2wnroy00] Oh that, sorry we can’t cause it takes a [b:2wnroy00]long time[/b:2wnroy00] to see.

Why doesn’t negative mutations take a long time?
I suppose all they have to do is keep on making the amount of time longer every time to avoid the question.

~Victor