I think your expectations are too high, although 2024 will be a bull run, but I'm sure the price won't go up as high as you expect, because altcoin that you choose has a high price and market cap, so it's possible that the price will increase the highest by about 5x from the ATH price and myself only choose to invest in ETH and BNB, because it is safer and the price will definitely increase (my prediction is 5x from the price of ATH).
Yep, for some coins, it looks a bit too much. I never think that Near can raise 50x and Shiba can skyrocket 100x. It may be not impossible but looks hard to happen. Moreover, we don't know when the altcoins season will happen. If we consider the previous bullrun season, the altcoins season happened a year after the Bitcoin halving, it means to happen in 2025 for the next bullrun cycle. So, it probably won't happen in 2024 as he expected.
By the way, I assume if Bitcoin really can pass $100k, there should be a big jump for top altcoins like ETH, BNB, MATIC, and ADA. It is not impossible to see they increase about 10x or more. But it is just a guess, and it may happen if BTC really reaches/passes $100k as people predicted. The hype on Bitcoin will bring big impacts on the altcoins, too.
DWYOR