d__k

2) αcτµαlly pδrταblε εxεcµταblε

What is easier to comprehend?

I have been trying to comprehend and formulate the main idea behind the usage of this technology, for example, as follows:

    OAuth allows us to use surrogates (like JWT) instead of the original credentials (like name and password) with the main benefits that once it is available, the original credentials are not needed anymore: neither by the client nor by the server

Do I miss something more important?

Any relation by definition is supposed to change in time. So why do we need to introduce a special kind of relations? The authors essentially confirm that there is no difference between classical relations and "time-varying" relations.

Also, it is not clear how does it relate to EPL (in CEP) which is also based on SQL.

This explanation of momentum is somewhere between misleading and wrong. Momentum is about inertia and acceleration, i.e., the ability to quickly change speed.

This is precisely what I would do as an engineer if I was responsible for operating such kind of network infrastructure

    |US invasions| >> |Russia invasions|

    |US invasions| / GDP ~= |Russia invasions| / GDP

4) The democratic way: ask people in this "another" country and if the opinions split then restructure it: either convert it peacefully into two countries (like Czechoslovakia) or confederation/federation.

It depends on how you define liberal. For example, Afganistan, Somalia, the Ukraine are very liberal nowadays: weak central government, weak central censorship, weak currency. Instead, warlords and gangs having the same functions – but it can be treated as liberal and democratic construction - you can always do the same and everybody has equal rights (kind of early US).