Sagittarius A* is 26,000 light years away and has a mass of 4.3 million solar masses. The closest known black hole is Gaia BH1, 1560 light years away with a mass of 9.6 solar masses. It has a companion star from which you could obtain mass for converting to energy.
A black hole lasting 3 ms would have a mass of 95 tons and release 2 million megatons if my math is correct. So I'm not sure what you saw. It looks to me like a jellyfish. -- Matt Mahoney, [email protected] On Thu, Dec 11, 2025, 3:00 PM Quan Tesla <[email protected]> wrote: > Schwartzschild black holes can be generated in our atmosphere (rumored to > have been and I've seen a series of photographs that look suspicially like > an ER-Bridge emanating a black hole in our atmosphere, but they may only > last around 3 ms (the photos captured the hourglass emerging a solid (no > background light or sky objects shone through), unknown voidal shape for > much longer) but the horizon should remain fixed for ~12 ms. (think > wavefunction) > > With the ER-Bridge (Einstein-Rosen), things may get a lot more > interesting, where the throat of the E-R bridge could possibly be kept open > (as opposed to its mandatory 12 ms collapse), exawatts may be channeled > through. There should be a proxy Sag *A black hole in there somewhere. > These, and other objectives, are what warp-core research is about (think > wavefunction). > > Interesting speculative pic here. Loads of energy there. > > On Thu, Dec 11, 2025 at 8:38 PM Matt Mahoney <[email protected]> > wrote: > >> Not sure about spoofing, but we are posting to a public forum that shows >> our names and email addresses. The link is at the bottom of every email. >> >> I found a more precise calculation of the lifetime of a black hole. It is >> 5120 pi m^3 in Planck units. Any primordial black holes created during the >> Big Bang smaller than the size of a proton, or 500 million tons, would have >> evaporated by now. >> https://en.wikipedia.org/wiki/Hawking_radiation >> >> The only way we know how to make black holes is to bring together at >> least 3 solar masses (a solar mass is 2 x 10^30 Kg) so that gravity can >> overcome nuclear repulsion at the core of a neutron star. >> >> A Kardashev level III civilization could extract energy by dropping stars >> into Sagittarius A*, the black hole at the center of our galaxy, producing >> a quasar. This is the most efficient way to convert mass into energy. About >> half of the star's mass is converted and the rest is added to the black >> hole. Our galaxy has 10^11 stars, yielding 10^58 J. This is 50 times more >> energy than you could collect with 10^11 Dyson spheres over the lifetimes >> of the stars. Hydrogen fusion only converts about 1% of mass to energy. >> >> Kardashev level IV would convert all the the 10^53 Kg (10^12 galaxies) in >> the universe to 10^70 J. This would power 10^92 bit operations at the >> Landauer limit at the CMB temperature of 3 K. >> >> Your brain performs 10^25 bit operations over a lifetime. You could >> upload 10^67 human minds. >> >> The biosphere performed 10^48 DNA copy operations and 10^50 amino acid >> transcription operations on 10^37 bits of DNA over the last 4 billion >> years. You could search a space of 10^42 planets in a universe 10^18 times >> as large to optimize evolution. >> >> But you still could not simulate the universe at the wave function level >> to make quantum mechanics deterministic and predict tomorrow's Powerball >> numbers. The entropy of the universe out to the Hubble radius is 1/4 the >> surface area in Planck units, or 2.95 x 10^122 bits. >> >> -- Matt Mahoney, [email protected] >> >> On Thu, Dec 11, 2025, 2:13 AM Quan Tesla <[email protected]> wrote: >> >>> Not sure how your response relates to pyramids in general, but I need to >>> ask: In physics, how would you drop 1 kg of mass into a black hole and >>> extract the exawatts from it? Moreso, where would you physically get a >>> black hole from that would permit you to traverse its firewall? >>> >>> On Thu, Dec 11, 2025 at 8:33 AM Matt Mahoney <[email protected]> >>> wrote: >>> >>>> It's a simple physics problem. The great pyramid of Giza weighs 5.5M >>>> tons. 1 kg of mass dropped into a black hole converts to 9 x 10^16 J or >>>> 21.5 megatons. The lifetime of a black hole is on the order of the mass >>>> cubed in Planck units. A Planck mass is 22 micrograms. So the pyramid >>>> weighs 2.5 x 10^17 Planck units and would live about 10^52 units of 5.4 x >>>> 10^-44 seconds, or about a year. It would convert mass to Hawking radiation >>>> energy at a rate of 300 kg/s, or 30 exawatts of hard gamma rays. >>>> >>>> This is about 300 times the energy received from the sun. Since >>>> radiation increases with the fourth power of temperature, this would raise >>>> the Earth's surface temperature from 290 K to 1200 K before it went out >>>> with a final 100 billion megaton blast. >>>> >>>> -- Matt Mahoney, [email protected] >>>> >>>> On Thu, Dec 11, 2025, 12:21 AM Quan Tesla <[email protected]> wrote: >>>> >>>>> John. I give up. How many and when and where's the physical evidence >>>>> thereof? It's all speculative. Interesting, but speculative. It may also >>>>> just have been the temples of the elite, hogging the limelight and social >>>>> power. Not disimilar to what we observe today. >>>>> >>>>> On Thu, Dec 11, 2025 at 6:01 AM John Rose via AGI < >>>>> [email protected]> wrote: >>>>> >>>>>> On Wednesday, December 10, 2025, at 9:55 AM, Quan Tesla wrote: >>>>>> >>>>>> Did some reading. aboyt Dyson spheres. Fascinating concept. Thanks >>>>>> for the headsup. Down to Earth, the following is AI's version of our >>>>>> state >>>>>> of civilization. Q: If less than 10% of the global population achieves >>>>>> 0.75, does that mean the whole civilization did? Nope. We're still in the >>>>>> Type I's infancy. Lots of opportunity to really ramp this up. >>>>>> >>>>>> >>>>>> How many watts did the pyramids put out :) >>>>>> >>>>> *Artificial General Intelligence List > <https://agi.topicbox.com/latest>* / AGI / see discussions > <https://agi.topicbox.com/groups/agi> + participants > <https://agi.topicbox.com/groups/agi/members> + delivery options > <https://agi.topicbox.com/groups/agi/subscription> Permalink > <https://agi.topicbox.com/groups/agi/T7ff992c51cca9e36-M297faa9e5a7f7eb6ebb03a2d> > ------------------------------------------ Artificial General Intelligence List: AGI Permalink: https://agi.topicbox.com/groups/agi/T7ff992c51cca9e36-M1e46b95b6a7ae40225da1db3 Delivery options: https://agi.topicbox.com/groups/agi/subscription
