From the moment you started focusing on the result (becoming a better programmer) and you forgot to enjoy the journey (why would you ask if you should go through the lectures of a recent Coursera course if that's something you enjoy doing?) you failed.
In my opinion, do what you enjoy doing, nothing else matters as long as you enjoy what you're doing.
This has the potential of making being rich kind of...obsolete.
Think of it like this: can't afford an iphone? There's a Holographic iPhone you can download. Can't afford a fancy big screen TV, there are thousands out there you can download, etc.
This will all depend on the quality / ease of use of Holographic Windows, but I can already see it's the future of computing.
The project looks great, but it's ironic that it uses github.com to host itself [1].
The only message "not eating your own dog food" sends is this: "we're not doing it for ourselves, we're doing it for those who might find it interesting", which in turn sends a strong warning about the lifespan of the project.
My reasoning was "what if an HN reader is trying to rent their apartment in Paris". The probability is so low, but for problems that are not usually recurring, you can find help in the most unexpected places.
PS: I am not relying on HN for this, I am using other rent specialised services as well. This was just a message sent out in the universe, if caught by the right eye I'll go from 0 to 1, otherwise, I am staying in 0, not going to -1.
In my opinion, do what you enjoy doing, nothing else matters as long as you enjoy what you're doing.