There are lots of problems in crypto.

But some aren’t ready to be solved yet. The market has to be ready.

What problems do you think should be solved next?

Building /stokefire a mobile strategy game onchain. Run and own poolfish.xyz a calculator for LP providers. Built Potion solo and sold for $300k.

Transaction costs are still way too high on ETH, and layer 2s still have a long way to go until they can make strong security guarantees. 

With current txn cost, the only apps that make sense are highly financial.

Ah yes, that's a good one. What needs to happen for L2 to have strong security guarantees. Are they still pretty centralized?

Yeah Optimism and Arbitrum still have totally centralized sequencers. I think L2 beat has the best descriptions. https://l2beat.com/scaling/tvl