in fact lisk give volume 30k bitcoin and etherum give 30k volume too 
i think without altcoin, bitcoin can't survive
i think without altcoin, bitcoin can't survive
Yeah you are right dude, other alternative coin can support bitcoin to always stay in the top of Cryptocurrency list. The bitcoin see more big Rather than other Cryptocurrency, because from the popularity of bitcoin.
that is so wrong.
the only reason bitcoin is the top of cryptocurrency list is because it is good and original and not like altcoins that are either copying each other or are fully scam pump and dumps.
it is surely not because of existing altcoins that bitcoin is the top!