I am quite aware of the above. However, I am quite aware that exactly the same, means exactly the same - no changes. In addition to which, when scientists, real scientists write the DNA code for a gene, they do not write it that way. They just use letters for each of the 20 amino acids produced. That is what they sequence for, so you lose again.
Also, if you know the above, you certainly know that DNA is the code that makes the proteins, so your whole argument about proteins and DNA having nothing to do with each other was a blatant lie.
No, you still don't get it. You never admit error, so you're going to make a point of never "getting it." TTA can be replaced with CTC and you still get leucine. There's a ton of possible substitutions which have no effect on the resulting protein.
Yes, that particular notation would ignore "silent mutations" that do not change the amino acid sequence. But that does not mean such silent mutations do not occur, or that no one notices them. It only means that a particular notation for a certain purpose ignores them. When using a gene as a molecular clock, you have to notice the silent mutations as well as the noisy ones.