Should Bitcoin's price stall after its ETF trading start, investor interest is expected to shift to altcoins, leading to significant pumps as capital flows from BTC into less liquid altcoins.
"if BTC stalls here after the big trading start and then not much happens people want the next thing I think they will go for the altcoins people are excited now they've made money on bitcoin and then those money from liquid BTC can flow over into much less liquid old coins that can pump a lot"