Under the right combination of circumstances, Zcash(CRYPTO: ZEC) could be worth more than Bitcoin(CRYPTO: BTC) by late 2031, as could Ethereum(CRYPTO: ETH).
Quantum computing could create a huge shakeup of the crypto leaderboard The cryptography that secures the Bitcoin network can theoretically be cracked by a sufficiently powerful quantum computer.
So the debate about precisely how best to secure Bitcoin against quantum computers will not be trivial to resolve.
Which coin could end up worth more than Bitcoin?
Therefore, Zcash is the more likely of the pair to be worth more than Bitcoin in the next five years, provided that both a quantum computing scare and insufficient preparation occur as described above.