Far too hopeful (did you read what I linked to?).

Basically the only thing growing at anywhere near that sort of rate now is storage (and yet people whinge about the size of blockchain which is actually the least serious problem).

The two things that are not increasing in a way that will allow massive scaling (through simple increases in block sizes) are bandwidth and processing power.

This is why smart ways of reworking the Bitcoin implementation (such as SegWit) are essential to allowing the system to provide the kind of P2P Cash that many are hoping (or expecting) it to provide.

As a settlement layer it is already perfectly functional as is.