can someone explain why lenski's evolution experiment is so devastating to creationists?

Question

trancenova · Answer

I suspect (after having a browse on wikipedia) that lenski's evolution experiment showed evolutionary changes occurring over many generations. This means that for evolution to occur (in humans for example) it would occur over many millenia which is difficult if you believe the world is only 5000 years old.

anonymous · Answer

Lenksi took 12 seperate cultures of E.Coli and made them divide 50,000 times in slightly "unfit" conditions (compromising their DNA) over the course of roughly 20yrs. The results showed not just random deforming mutations, but also the developement of useful adaptions that would suddenly pop up, then vanish, then pop up again combined with an even more useful trait to better suite the evnviromnent they were in. But then they would lose a trait that would be helpful if they were to be set into a different enviroment. It is devastating to Creationists because they believe all life was CREATED, meaning it was planned out and has a purpose from the start. However, Evolution is Randon and Opportunistic, and Lenksi's E.Coli experiment pretty much proved that.