How long do we have to wait before we can consider blockchains not so new? Bitcoin is 10yo, the whole field has received literal billions in founding in the past few years (anybody with a good looking website and a three page whitepaper could make millions in an ICO last year). Furthermore anybody coming up with an actual innovation in the field is sure to make millions so the incentive to innovate is huge.
So, where are the results?
Your car analogy doesn't add up, for quite a while horses were undoubtedly more convenient than automobiles. Then automobiles improved and took over. We have a similar situation with electric cars today.
Blockchain technologies are not a few cycles of optimizations away from being able to compete with PostgreSQL, they work fundamentally differently and they have fundamentally, per design, strong limitations about how efficient they can be. That's the cost of trustless decentralization.
To overcome these limitations you don't need "a blockchain but more better", you need a fundamental breakthrough in the way these things work. I suppose you could hope for such a breakthrough but that's akin to hoping that we're going to figure out cold fusion and solve the energy crisis. Sure, it can happen but it's not unreasonable to be skeptical of it.
So, where are the results?
Your car analogy doesn't add up, for quite a while horses were undoubtedly more convenient than automobiles. Then automobiles improved and took over. We have a similar situation with electric cars today.
Blockchain technologies are not a few cycles of optimizations away from being able to compete with PostgreSQL, they work fundamentally differently and they have fundamentally, per design, strong limitations about how efficient they can be. That's the cost of trustless decentralization.
To overcome these limitations you don't need "a blockchain but more better", you need a fundamental breakthrough in the way these things work. I suppose you could hope for such a breakthrough but that's akin to hoping that we're going to figure out cold fusion and solve the energy crisis. Sure, it can happen but it's not unreasonable to be skeptical of it.