Skimming through the ToC this looks similar to Antti Laaksonen's Competitive Programmer's Handbook [1], which I would also recommend.

[1] https://cses.fi/book/index.html

Thanks for linking this. This is exactly the type of book I was trying to find a couple of months ago.

Looks like a Dell XPS 13.

Had the same question and did some digging. It appears to be this one by user murbard2: https://hackernews.hn/item?id=12940675

What's the motivation for Bloomberg to open-source this?

Probably the same motivation Yahoo had to release Hadoop, FB to release Hive, Netflix to release so much of their libs and so on and so forth:

- if nothing else, it does no harm (no 'secret sauce' competitors could benefit from)

- it buys karma (think recruiting goodwill)

If the project catches on though then there are many advantages:

- it can spark a self-sustained ecosystem that can further drive the product, at much lower cost for original creator (think Hadoop leading to Cloudera, Hortonworks etc). Product improves, bugs are fixed, toolset matures

- newhires come with know-how to use your internal tools, lower ramp up, better productivity. Anecdotal, but when I was at Microsoft no newhire knew how to use the internal Cosmos stuff, and even among old timers more folk were familiar with Hadoop...

Regarding physical fitness I've always liked:

"No man has the right to be an amateur in the matter of physical training. It is a shame for a man to grow old without seeing the beauty and strength of which his body is capable." -- Socrates

What is a bluedoc?

It's just a Google Docs template used for internal engineering design docs at Google. The linked doc is a typical example.