That is just silly talk. So check this out, looking up Caleb's stats, and I keep coming back to he is 1 of 1. There literally are no QBs ever to put up the stat line he is going to put up in their first 2 seasons.
Right now, no QB has ever thrown for more than 7K Passing Yards with 40 Passing TDs, 500 Rushing Yards, with 20 or fewer INTs.
Williams is on pace for 7,500 Passing Yards, 45 Passing TDs, 900 Rushing Yards and 14 INT. He would not only beat that mark, he is going to crush it. He already has 5,677 Pass Yds, 33 TD, 735 Rush Yds, and 10 INT.
QBs have had more passing yards, TDs, rushing yards, etc, but none have collectively put together such a well-rounded first two seasons ever. RG3 was close with 6400 Pass Yds, 36 TD, 17 INT, and 1,304 Rush Yds.