[markeroon]

I'm not sure that this is the way. It's much easier to get a small amount of knowledge about a lot of topics. If you want to be a generalist then that's great, otherwise, I think it's important to keep asking yourself "How can I drill deeper?"

This is specifically regarding the third point; I agree with the first two!

[justincormack]

The OP mentioned architecture - it helps to be a bit of a generalist to learn architecture, as you need to understand different kinds of problems.