Why aren't large blocks the long-term solution to the scalability problem for all cryptocurrencies, as I see most if not all cryptocurrencies moving towards second-layer solutions, so why isn't a cryptocurrency created?
block size: 32 MB
avg block time: 15 seconds.
We can say that the transaction is secure after 8 blocks, and then the network will be able to process thousands of transactions. So why is this not a long-term solution or what are the problems with this solution?
For those who want to say that the costs of running full nodes will be a problem, I say that internet fees decrease, internet speed increases and storage costs per TB decrease.