What is liquid cryptocurrency?
Could you please elaborate on the concept of "liquid cryptocurrency" in simple terms? I'm interested in understanding how it differs from other types of cryptocurrencies and what factors contribute to its liquidity. Specifically, I'd like to know about the market availability, trading volume, and the ease of converting it into fiat currency or other digital assets. Is there a general standard or metric to determine the liquidity of a cryptocurrency? Also, could you provide examples of some highly liquid cryptocurrencies?