quote:
Originally posted by John Paul:
What limits body builders from lifting more & more weight? What limits runners from breaking the sound barrier?
Only being able to increase muscle mass a couple of 10s of percents.
[QUOTE]Originally posted by John Paul:
Why in all the millions (if not billions) of observed bacterial generations have we not observed bacteria evolving into anything but bacteria? Why does a virus ALWAYS remain a virus?
[/B][/QUOTE]
Possible answer. An organism today has to overcome environmental pressures to evolve from niche a to niche b. In the pre-Cambrian fewer environmental pressures existed, so macro evolution was met with less failure.
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Occam's razor is not for shaving with.