Pure sophistry. I'm not interested in having a conversation with someone who has no intention of discussing in good faith.
Clearly by "300 game", I mean "playing very badly" and by "2000 game" I mean "playing very well". Within the 2, there are also levels of nuance that anyone who has seen both ~300 elo players and ~2000 elo players would note. For example - a 2000 elo player plays methodical (in terms of attacking and development), improving and restricting moves, a 300 elo player plays one-move attacks, over extends and doesn't pay attention to half the board. A 2000 elo player looks to avoid things like isolated pawns, a 300 elo player does not. If you don't understand this, then you've no business taking part in the discussion. If you are interested in understanding, Levy had a good example very recently with 2 300 elo players. No one can sit there with a straight face and tell me those players are capable of playing at a level thousands of ratings points above their level.
Equally clearly, what I am saying is very, very different to someone who says that a player simply played at different levels during the game. Your statement is an incredibly simplistic summary that can't possibly be taken in any way as a good faith assessment of my position. Very, very clearly I am talking about massive differences in standards of play from the same player. And not just one player. Many, many, many players exhibit the same characteristic of playing very badly, suddenly playing very, very well (and in a completely different style) for extended periods and then blundering pieces and exchanges all over the place once they are in a position that a player who wasn't very good might think was 'well ahead'.
Finally, I'm accusing you of not reading what I wrote because not only are you repeating the same point, it's the same straw-man response that I've pointed out to you is a strawman several times. Either you haven't read what I wrote, or you're deliberately misrepresenting my position.
And before you accuse me of not reading any thing you write, know that we're both repeating the same points. If you repeat the same reasoning, then don't expect a different response.