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Not sure exactly what you're linking the Wikipedia article on quantum states, but if you like it as a reference, check out https://en.wikipedia.org/wiki/Quantum_state#Mixed_states. The operation of "projecting out" the E&M field in my previous comment would be realized on the density matrix as a partial trace over the electromagnetic field. You can also take the partial trace of this field of the Hamiltonian operator to see the effective dynamics of the atom when "ignoring" the E&M field. This is a fully quantum description of the state, so I stand by the statement that your claim "An atom can be described by its quantum state only if it's isolated and in that case its energy is constant." is incorrect.

"An atom can be described by its quantum state only if it's isolated and in that case its energy is constant."

How do you figure? As a contradiction, take your atom+electromagnetic field system, describe the transition from excited atom to unexcited atom + photon state, and project out the E&M field. Voila, now you have a quantum description of an atom transitioning between different energy states. Its dynamics may look funny, i.e. they may appear nonlocal, they may not conserve energy, etc. but that's different from saying "there is not a quantum description of these dynamics" which is what you're claiming.

How did you buy Inbox? Wasn't it free?

Seems like a false equivalence "free skin on top of Gmail" != paid-for service like this one.

"Basically any fundamentally correct buffer encoded as message A will decode successfully as message B for any B."

This is incorrect. I suspect you're overextending proto3's treatment of unknown fields to include discarding incorrectly typed fields too. If A has field 1 types as an int, and B has field 1 typed as a string, an A message with field 1 set will not parse as a B message. However, if the A message has no fields set, or sets a field number unknown to B, that could parse successfully with "leftover" unknown fields.

Mass migration seems to be for economic benefits. A handful of people may immigrate out of appreciation of their new host culture, but millions or tens of millions doing so? Seems unlikely to me. They'll go to earn more money.

The creators of Guice mention how configuring the dependency graph in Java was a big advantage it offers over older XML-based frameworks like Spring.

Interesting. So they're reporting on a competitor and are known to try to move markets with their stories. Is there oversight? Since I have no legal training I ask naively, do protections for journalism cover a situation where reporters aim to influence and persuade (like editorials) rather than provide "just the facts?"