When I first heard about Ethereum I figured the value it would bring was incentivising everyone to create a worldwide supercomputer of the sorts we've never even seen before that can do really amazing computational work as opposed to bitcoin which just seems to crunch numbers entirely pointlessly. Any ideas why that never happened?
For one, the computational work for checking everyone's transactions on everyone's computer (i.e. blockchain) is consuming the computing power of the people interested.
Until sharding provides a tunable level of security, we will see this waste of computing power.
Then, that might enable more payments for cheaper, which might let you pay by the minute and such.
But the second main brake in adoption is legal. Many countries' jurisdictions require lots of bureaucracy to earn money from various places of the world. For example, EU has VAT, which requires bureaucracy for EU country-to-country payments even if you are exempt (Register of Intra-Community Operators). This negates pretty much all the advantage of trustless/decentralized businesses (ease of payments).
>For one, the computational work for checking everyone's transactions on everyone's computer (i.e. blockchain) is consuming the computing power of the people interested.
With ZKP there won't be a need to run every transaction on everyone's computer