Bitcoin rally will never stop mate,it may sometimes paused and fall but surely it will come up sooner ,so basically there is no stopping .

But about altcoin ? each coins has bull time but don't expect like what 2018 has in which majority goes Bull because the Bitcoin trader those time is playing the market,when the ATH reached they transfer to altcoin and make another hype,this time things change because those who invest in Bitcoin are here to Stay and not to play.