On adoption... It's a challenge to cultivate patience around these upgrades. We see the promise and want the upgrades to be implemented now. We're all ready for the end-user applications but the base protocol is still being improved and optimized so the middleware/services layer can be stabilized -- and only then will there be an explosion in quality end-user apps.

I think that Bitcoin might actually be 2 years ahead of other crypto projects. The proper precautions are taken when upgrading the cryptography & protocols -- so Schnorr started a couple years ago. It takes that long and longer to consider the best implementation. It's not like upgrading a WordPress site or tweaking a Steem upvote algorithm.

On the middleware side, Lighting Network started a few years ago and is just now starting it's life on Bitcoin mainnet.

As long as Bitcoin can continue to roll out these upgrades in a stable way that protects all of us, Bitcoin could start look like the best protocol to develop on, not just the old dinosaur. Especially if other protocols and projects seriously stumble when they take off and real people start using them (scaling, security, etc...).