every thing must have a gap, and the gap is something we have to solve, because it is included in a problem.
like bitcoin, even though it's a number 1 coin but it has many gaps in it, and altcoin appears to cover the bitcoin gap,
as well as the economy, a lot of problems arise, and cryptocurrency is born to cover the gap,
For example, cryptocurrency is an amta money that cannot be regulated by anyone, and only the owner of the coin can manage it, and there is no third party intermediary there.