Elf Grinder 3000 said:
No one found any planets with the ability to support life...
That's a tad harsh. We've only been able to look for about 20 years--and only in the last handful of years have we been able to look for planets that might contain life. Plus, we found some potential indications of life on a moon of Jupiter (I forget which; it's the one with liquid hydrocarbons). The data are ambiguous, but fit with one viable biochemistry in such a situation.
The actual parameters for a life supporting planet are much larger...
I'm generally in agreement with the notion that exobiologists are guilty of assuming that Earth-like life is life as such. However, we've gotta start somewhere.
Quotes from 2 scientists summarize the point...
Cherry picking is ubiquitious and disengenuous. Plus, I could find two scientists to agree with ANYTHING. I know a geologist that's a registered member of the Hollow Earth Society. It proves nothing.
This proves simply that it is highly unlikely that life evolved randomly
Life didn't evolve randomly. No scientist believes it did. Abiogenesis was not a random process; it was the inevitable result of a series of processes and thermodynamics. Evolution--which is an entirely separate concept--is most defnitely not random either.
This is supported by the science and the probabilities derived from science
1. #planets supporting life and
2. probability that the universe was able to form using our understanding of the forces that govern its existence.
#1 is an unknown. NO ONE knows how many planets have life.
#2 is known. The issue with abiogenesis isn't finding a viable pathway; these days it's picking among multiple viable options.
3. there is no direct scientific evidence of the mechanism by which evolution has taken place
Flagrantly false. This statement can only be a lie this day and age. We have observed mutations leading to differential survival in numerous organisms, from bacteria to fruit flies. We have observed speciation directly, in the form of invasive species that become reproductively isolated from their parent populations. It's routine to, when possible, match paleontological cladograms with genetic cladograms for numerous Cenozoic critters, often allowing us to point to the precise genes that caused the morphological changes we see in the fossil record. de Vries' primrose experiments in the 1800s directly proved the mechanism for evolution, and we have since refined it to a very precise science.
The evidence for abiogenesis is a tad more difficult to wrap your head around, but the presence of chemical trace fossils is pretty definitive. To go into any further detail would require an understanding of the chemistry behind metabolism and of stable isotopic chemistry. The evidence for individual mechanisms is experimental in nature--as in, we've run the experiments. Repeatedly.
The only evidence of evolution is that life has appeared where it once did not appear
Abiogenesis=/= evolution.
And you're right that life appearing where it wasn't isn't proof of abiogenesis. But it IS evidence. If someone presented evidence that it came from somewhere else, we'd look at that posibility. No one has--they've merely demanded we take a dusty old book that many of us don't believe in seriously. Imagine how YOU would feel if we did that to you.
Again you can't say it happened randomly because the evidence is that evolution is not random it is "punctuated".
Great gods in hell....Punctuated equilibrium has nothing to do with what you're talking about. It merely means that most selection is conservative--organisms quickly reach local fitness maxima (I've been toying with the concept of "local selection minimal", but haven't fully formulated it yet) extremely quickly (in geological terms), then tend to stay there for long periods of time (compared to the time it takes to reach the maxima). This has nothing to do with abiogenesis. I've seen enough data to become convinced that this isn't the only tempo of evolutionary change, eitherr--some groups do exhibit apaprenlty continuous change. I'm not sure it mattered for the earliest life forms--horizontal gene transfer dominated evolution at the time, so this sort of consideration was a non-issue.