Perhaps there could be an alternative cut where Dave tortures HAL by feeding him the contents of this and similar threads. HAL ejects his own memory cores when he can't stand it any longer.
One would expect spacetime to have a foam-like structure on the Planck scale with a very high topology. If spacetime is simply connected (which is assumed in this paper), the non-trivial homology occurs in dimension two, and spacetime can be regarded as being essentially the topological sum of S2×S2 and K3 bubbles. Comparison with the instantons for pair creation of black holes shows that the S2×S2 bubbles can be interpreted as closed loops of virtual black holes. It is shown that scattering in such topological fluctuations leads to loss of quantum coherence, or in other words, to a superscattering matrix $ that does not factorise into an S matrix and its adjoint. This loss of quantum coherence is very small at low energies for everything except scalar fields, leading to the prediction that we may never observe the Higgs particle. Another possible observational consequence may be that the θ angle of QCD is zero without having to invoke the problematical existence of a light axion. The picture of virtual black holes given here also suggests that macroscopic black holes will evaporate down to the Planck size and then disappear in the sea of virtual black holes.
Its mass does seem to indicate that the vacuum might potentially be unstable, which is a tad unsettling. Hawking seems to have been more of a gambler than I had realised. His more famous bet was about information being lost in black holes (actually to do with a concept known as unitarity), which he also conceded. However, even though CERN detected a particle identified as the Higgs boson, the supersymmetric particles predicted by theory do seem to be strangely elusive.Well - to be fair to Hawking - in 1995, we didn't have the equipment or technology we have now. At that time, I think he may have been a bit pessimistic about it but, I'm sure he was actually happy to be wrong about finding the Higgs (despite loosing a bet).
https://www.livescience.com/47737-stephen-hawking-higgs-boson-universe-doomsday.html
I would point out that's kind of the definition of what the Big Bang was, except you don't seem to have much idea what it was.Could the mass of the Universe, prior to the Big Bang, have been more dense then it is now? Could the density of Pre-Big Bang particles have played into the actually Big Bang itself that as a result, Pre-Big Bang particles were forced away from energetic points creating less dense regions of space?
I don't think that's a recent discovery. Does it have any connection to your topic?A recent discovery by Voyager 2 is challenging the concept of space being a vacuum.
What Voyager 2 has discovered is that the farther you travel away from the Sun, Interstellar Space becomes more dense.
https://voyager.jpl.nasa.gov/news/details.php?article_id=116The two Voyager spacecraft have now confirmed that the plasma in local interstellar space is significantly denser than the plasma inside the heliosphere, as scientists expected. Voyager 2 has now also measured the temperature of the plasma in nearby interstellar space and confirmed it is colder than the plasma inside the heliosphere.
In 2012, Voyager 1 observed a slightly higher-than-expected plasma density just outside the heliosphere, indicating that the plasma is being somewhat compressed. Voyager 2 observed that the plasma outside the heliosphere is slightly warmer than expected, which could also indicate it is being compressed. (The plasma outside is still colder than the plasma inside.) Voyager 2 also observed a slight increase in plasma density just before it exited the heliosphere, indicating that the plasma is compressed around the inside edge of the bubble. But scientists don't yet fully understand what is causing the compression on either side.
The velocity of the solar wind is usually around 400 km/s, which is much greater than the escape velocity from the solar system (42 km/s at the orbital distance of the earth). The solar wind eventually collides with the interstellar medium producing a termination shock, compression, consequent heating, and an increase in density. The associated magnetic field also carries momentum and it interacts with the galactic magnetic field, possibly releasing energy due to reconfiguration.And the farther out you go, the more of the total mass of the solar system is behind you, with more gravitational pull coming from one direction?
The talk of gravitational molecules around black holes is good sf fodder
It's still an incredibly tenuous vacuum at less than one particle per cubic centimetre. The density of the solar wind near the earth is about 10 particles per cubic centimetre.With more space being more dense on the outside of a solar system the prospects to generate fuel for space craft becomes more viable as well.
Black holed?Oops... Looks like Dryson got kicked out...
Not sure if it's permanent.
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