[nly]

Maybe it's because Bitcoin is pretty shallow topic on the technical side?

At this stage all the interesting aspects of Bitcoin are economic, political or philosophical rather than technical, especially since most of the latter has been discussed to death.

[singularity2001]

The original idea of blockchains might be simple(shallow) but it is still technically a very deep and interesting topic. Do you think proof of stake is the ultimate invention which resolves all current and future trust and scaling issues? Do you think the current implantation of smart contracts is the epitome of engineering? There isn't even (to my knowledge) a blockchain which enables a smart marketplace for compute time. (The computecoins I investigated fell very short of the promise of being a serverless AWS competitor).