Why is it important for blockchain networks to be high availability networks?
One aspect is the use cases that especially Bitcoin may try to solve in being the “new” money that we want to store value in and/or exchange value with. That use cases with other future ones may benefit a lot from the high availability.
The other maybe more important aspect is the security of the entire network. Where the Bitcoin networks security depends on actors that participate in a “mining” operation with its CPU power to make the network highly secured. The network want to see as many “miners” as possible to work and solve the math problems to secure the network without any significant drop or downtime where security may then have a higher probability of being compromised.
What is it that enables blockchain networks to have such high availability?
The algorithm that Bitcoin run on will adjust the difficult levels on the “math problem” on the mining operation so that if a big group of mining CPU power will for whatever reason drop suddenly it will adjust the difficult of mining down so that more actors will find it profitable to start doing mining operations. This adjustment will prevent the Bitcoin network to lose its securing mining operation for any longer period of time.