The difference in market growth is what drives some people to suggest that Ethereum quickly become Bitcoin's biggest rival for the top spot in the crypto world in Crete. Ethereum is only available for two years, while Bitcoin has been in the market for over a decade. Actually, Bitcoin's age may be a barrier and even sparked a debate about how to measure Bitcoin's network in order to accommodate the booming user pool of Bitcoin and the transaction gets very hot. With Bitcoin still relying on many of the original codes, other cryptocurrencies can take into account the pitfalls that Bitcoin experienced when developing their own systems.