-First of all this experiment was designed, assuming that was the environment on earth.
-No oxygen was used in the experiment - oxygen actually destroyed the experiment. Oxygen the essential ingredient for life as we know it, was kryptonite in the experiment.
-He assumes the condition on the planet were the same as his controlled experiment. There is not evidence of that, the evidence is actually to the contrary CO2 and N2 was it not methane or ammonia (geochemical evidence). I mean talk about climate change. Now the same scientists ignore their own evidence just to make a point.
-The experiment only produced right handed amino acids (life actually requires left handed amino acids)
-To this day we haven't created living matter from non living matter even in a laboratory.
1.) Yes, it can be reasonably determined that the environment demonstrated in Miller-Urey was exceedingly close to that of the early earth. We know from rigorous evidence that volcanic activity produced the earth's early atmosphere. It doesn't take a genius to therefore analyze samples of modern day volcanic output and discover it's largely CH4, NH3, H2O, H2, and quite a lot of CO2.
2.) No oxygen was used because it was virtually absent in the earth's early atmosphere. Of course oxygen would have destroyed the environment, it's a very powerful oxidizer, whereas the early earth's atmosphere was reducing.
Oxygen is the essential ingredient for
eukaryotic life. Early life on earth was prokaryotic (bacteria, archaea) and can thrive on anaerobic respiration (No O2 required).
3.) Whatever geochemical evidence you quote is consistent with an early earth's atmosphere being produced by volcanic outgassing. This same volcanic output produced the gases found in the experiment.
4.) The experiment produced a mixture of both types of amino acids, it was racemic.
5.) "We haven't created living matter from non living matter even in a laboratory"
P has never been proven therefore P is/(must be) false
^^^ This is called the argument from ignorance. It's a logical fallacy.
Sources:
Prokaryote - Wikipedia, the free encyclopedia
Anaerobic respiration - Wikipedia, the free encyclopedia
http://www.ux1.eiu.edu/~cfjps/1400/atmos_origin.html
Astrobiology: Presentations and Science Nuggets
If you're going to continue making weak attempts to distort decades of research and peer review, at least cite your arguments. Please.