Timeline for Black hole as a storage device?
Current License: CC BY-SA 4.0
12 events
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| Jun 16, 2020 at 11:03 | history | edited | CommunityBot |
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| Oct 25, 2019 at 15:49 | comment | added | Steven Jackson | The formulas in the paper seem to indicate that the volume of the remnant grows directly (linearly) with the input mass, assuming uniform (and maximal) information density. It doesn't discuss mass much, but it seems plausible that since 1000x input mass == 1000x larger remnant (by volume), then it would also mean 1000x more massive remnant. If you can make a 1 gram remnant, you can also make a 1kg remnant (or 1000 kg) by throwing more stuff at it. But this is deep enough into not-precisely understood theory it seems plausibly handwavable even in a science based story. | |
| Oct 25, 2019 at 15:16 | history | edited | Steven Jackson | CC BY-SA 4.0 |
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| Oct 25, 2019 at 15:12 | comment | added | IMSoP | @StevenJackson Yes, I looked at that just after I made my comment. Still, I don't know the background well enough to grasp what order of magnitude we're talking - since the theory is being contrasted with one that states there will be mass, but at the size of the Planck constant, "large" might mean something up to 1 gram. | |
| Oct 25, 2019 at 15:06 | comment | added | Steven Jackson | @IMSoP I read the arxiv abstract which states "remnants that carry large amounts of information and whose size and mass depend on their information content", which does imply the amount that's left over can be arbitrarily large... unless I'm parsing it incorrectly (arxiv.org/abs/hep-th/9203059). More information in => more information content in remnant. More information content in remnant => more mass. I'll clarify that the "size/mass" of the remnant isn't something I'm assuming just based on the title of the paper. | |
| Oct 25, 2019 at 8:26 | comment | added | IMSoP | The phrase "Massive Remnants" in the paper doesn't imply anything about the amount that's left over; in physics jargon, "massive" simply means "having mass", so it's just "remnants other than radiation". | |
| S Oct 24, 2019 at 19:10 | history | suggested | Ross Presser | CC BY-SA 4.0 |
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| Oct 24, 2019 at 19:05 | review | Suggested edits | |||
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| Oct 24, 2019 at 17:20 | comment | added | Steven Jackson | It's also kind of funny in the sense that simply continuing to feed in new matter can "snooze" the doomsday clock by pushing back the evaporation date (or, depending on the plot, make the weapon unusable by changing the remnant in some important way), but it is impossible to determine what's inside a particular black hole before it's fully evaporated, when it's obviously too late to stop. | |
| Oct 24, 2019 at 17:15 | history | edited | Steven Jackson | CC BY-SA 4.0 |
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| Oct 24, 2019 at 17:15 | comment | added | user69899 | Thinking about it, a kinda doomsday clock for the machine could be cool. The weapon is released when the black hole finally evaporates. | |
| Oct 24, 2019 at 17:12 | history | answered | Steven Jackson | CC BY-SA 4.0 |