[Tribune7]

Generally speaking, an explanation requires the observation of a process or the assertion of a cause and effect relationship.

So did the flagellum evolve?

[js1138]

Absolutely. and there's a pretty good explanation of how it could have evolved.

The requirement that we know exactly how is bogus. In a forensic investivation, the existence of multiple possible paths is not a problem.

The alternative, that God or some unknown alien, designed a device for the specific purpose of killing infants and children, seems a bit far fetched.

[2nsdammit]

http://www.millerandlevine.com/km/evol/design2/article.html