"DOUBLE SHALOM: Don’t be a fool!!! The trouble with such experiments is that it relies on the assumption that there was no bacteria variety capable of metabolizing sugar in the first population. "
What are you talking about?!?! In the case of the nylon eating bacteria, we can actually see the frameshift mutation that gave the bacteria the ability to metabolize nylon! Nylon didn't exist before 1935. If this mutation had occurred before this time, the mutant would have died out, it wouldn't have any food. We see what the mutation was, a frame shift mutation, what it did, it created a string of NEW amino acids! New information! No assumptions, just empirical observation! The new amino acid string produces a new protein, which allows the bacteria to consume nylon. And because the bacteria that has this mutation lives in an environment that now has nylon in it, it is a beneficial mutation!
"Only a fool jumps to a conclusion that a positive mutation has made it possible for bacteria to metabolize sugar."
Who's talking about sugar? We're talking about nylon eating bacteria. And it was a frameshift mutation that allowed this bacteria to metabolize nylon, which didn't exist before 1935. Only a fool refuses to look at the evidence.
"In plain English, there was change in allele frequency but there was no positive mutation nor speciation."
IN plain English, there was a change in allele frequency, there was an observed mutation that led to a new string of amino acids and a new protein that allowed the bacteria to metabolize nylon. And because there was nylon in that environment, it is a beneficial mutation and a new species of bacteria!
"Simply put: you are failing to go past the peppered moth phenomena – micro evolution. That is just natural selection. Change in allele frequencies in populations over time does not cause speciation. Try again."
Don't have to, this is a beneficial mutation that didn't exist before, that creates a new species. Once again, you avoid the example because it destroys your claims.