“I wish I had known that sensing all the way to machine learning is about approximating the identity”
(link for this isn't loading) does this mean anything?
Its a like to a blog on compressive sensing pointing out that sensing (or rather sampling) is mathematically equivalent to using the identity matrix. It goes on as an introduction to compressive sensing.
Hm, that coincides pretty well with the Tiger Mom quadrad/quartet: math, foreign languages, computer programming, and musical instruments.