Ciro Santilli @cirosantilli 40

For some reason they attempt to make a single chip on an entire wafer!

They didn't care about MLperf as of 2019: www.zdnet.com/article/cerebras-did-not-spend-one-minute-working-on-mlperf-says-ceo/

It is quite comical that two separate towns were founded one next to the other right in the middle of nowhere. And that both have so slightly weird names.

where:

When we have a symmetric matrix, a change of basis keeps symmetry iff it is done by an orthogonal matrix, in which case:

The change of basis matrix $C$ is the matrix that allows us to express the new basis in an old basis:

Mnemonic is as follows: consider we have an initial basis $(x_{old},y_{old})$. Now, we define the new basis in terms of the old basis, e.g.:which can be written in matrix form as:and so if we set:we have:

The usual question then is: given a vector in the new basis, how do we represent it in the old basis?

The answer is that we simply have to calculate the matrix inverse of $M$:

That $M^{-1}$ is the matrix inverse.

See: Video "Your Life is Your life by Charles Bukowski".

Basically it looks like the dude got enough money after selling some companies, and now he's doing cooler stuff without much need of money. Not bad.

TODO instance of what?