The opposite of "real-time" in this context would be "sampling". It means that the capture represents the high-resolution time history of one particular event (one explosion) instead of fast and successively offset captures from as many events.
Once someone else receives, decrypts, and reads the message, the nexus of control in the iMessage system is really lost. "Disappearance" at the appointed time would probably be by far the lowest assurance property that the system would have, and Apple may simply not want to present properties that unreliable as an attribute of the system.
It’s EIRP, not actual radiated power. If the beam is narrow this is achievable with moderate total power. The DSN transmitter in Canberra is capable of this EIRP on about 100 kW total power.
In the context of this paper, the DSs are significantly smaller than galaxies, but JWST doesn't have enough resolution to distinguish a galaxy from the much smaller DS.
In their DS model, what seems to limit the rate at which the DM annihilates is that any interaction between DS particles has a low probability of happening (a cross section). We can imagine this as particles just whizzing around each other, gravitationally bound (i.e. confined to a nearby volume) but so small that they have a low probability of actually interacting.
Employment, outside a handful of environments where salaries are public, is probably a great example of a market that is indeed blind bid - this is what a recruiter is doing when they ask what your “salary expectations” are.
Not... really? The problem with blind bidding is that it's iterative — that's the "bidding" part. People don't "bid" their own salary expectations down; let alone are they prompted to do so by their potential employer.
Entanglement means that there are systems with highly (more-than-classically) correlated state - that the combined state is something that can’t be represented by considering the systems independently - not that the states are the same. The no-cloning theorem prohibits a process that takes the state of a system and replicates it on another system. It’s certainly possible to have or to generate entangled sets of systems that have identical separable state, but not to copy an arbitrary state.
As you point out, the body can tolerate significant variation in absolute pressure, corresponding to the temperature, composition, and density of the gas you breathe.
The pressure that must be narrowly controlled in a ventilator application is the relative pressure: the difference between the absolute pressure outside the lung (in the room) and the absolute pressure inside the lung. This relative pressure is what does all the work --- mechanically opening airways and alveoli --- and could cause all the injury.
