Suppose there were no Altcoin, people would switch back to fiat in bearish times and chances of them coming back to btc were less.
Did you ever do the math computation which shows that all the trading transfers more value into the ticker with the lower beta.
Thus Bitcoin profits on altcoin speculation.
Bitcoin is the reserve currency of crypto.
Please stop with the nonsense about Bitcoin doesn't need altcoins.
It is like saying the US dollar doesn't need game tokens at the arcade.
Idiots STFU.