51–60 of 93 posts
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https://en.wikipedia.org/wiki/Population_bottleneck ?
This is the coolest part of that page: "A 2005 study from Rutgers University theorized that the pre-1492 native populations of the Americas are the descendants of only 70 individuals who crossed the land bridge between Asia and North America." https://www.livescience.com/289-north-america-settled-70-peo...
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> am certain that some of the ideas that many of us hold now will be thought quite silly in a few hundred years. Yes, like the theory that we're actually living in a simulation, espoused by Elon Musk and other respected, ostensibly science-minded people. It's basically Creationism in modern form.
> the theory that we're actually living in a simulation, ... It's basically Creationism in modern form. It's not even modern. It is basically Plato's Cave, which is classic Greek philosophy. https://en.wikipedia.org/wiki/Allegory_of_the_Cave The religious touch of that idea did not become popular until the movie "The Matrix", which originally had allusions to many different religions, but specialized to Christianity…
I'd be interested to know how plausible what they are saying is.
I'll take this opportunity to recommend Universe Sandbox[1], which is pretty cheap on steam and worth every penny. Turning on projected orbital lines in an N-body simulation of our solar system and seeing what happens when you toss a star in there is really enlightening... the rings all shift in tandem in a visceral way that really helps me "feel" what happens. There's a simulation that comes out of the box that simu…
That's incredibly terrifying. Although from what I see in the book description, it focuses more on the drama aspect.
I wouldn't mind someone exploring the technical aspect in more detail, e.g. what would be possible to do to prepare for such an event (if anything) and how likely it would lead to the extinction of civilization.
I'll take this opportunity to recommend Universe Sandbox[1], which is pretty cheap on steam and worth every penny. Turning on projected orbital lines in an N-body simulation of our solar system and seeing what happens when you toss a star in there is really enlightening... the rings all shift in tandem in a visceral way that really helps me "feel" what happens. There's a simulation that comes out of the box that simu…
> Most orbits remain stable but very deeply shifted from where they were (earth's aphelion ends up far out where Jupiter was, with its perihelion much closer than before...) That's incredibly terrifying. Although from what I see in the book description, it focuses more on the drama aspect. I wouldn't mind someone exploring the technical aspect in more detail, e.g. what would be possible to do to prepare for such an e…
I'll take this opportunity to recommend Universe Sandbox[1], which is pretty cheap on steam and worth every penny. Turning on projected orbital lines in an N-body simulation of our solar system and seeing what happens when you toss a star in there is really enlightening... the rings all shift in tandem in a visceral way that really helps me "feel" what happens. There's a simulation that comes out of the box that simu…
Do large, bright stars ever pass that close? What would that look like?
> Do large, bright stars ever pass that close? Yes, but it's extremely rare. > What would that look like? Not much. The Scholz flyby was at 0.6-0.8 light years, the same order of magnitude as the distance to Alpha Centauri. It would just look like a star, probably not even a particularly bright one.
I'll take this opportunity to recommend Universe Sandbox[1], which is pretty cheap on steam and worth every penny. Turning on projected orbital lines in an N-body simulation of our solar system and seeing what happens when you toss a star in there is really enlightening... the rings all shift in tandem in a visceral way that really helps me "feel" what happens. There's a simulation that comes out of the box that simu…
if you are going to bite the bullet and get this game, Id recommend the 2nd iteration of the game, think they call it Universe Sandbox^2 (squared) . Nicer graphics and speed improvements in the second version.Its got a steam VR version too for those with VR hardware.
I'll take this opportunity to recommend Universe Sandbox[1], which is pretty cheap on steam and worth every penny. Turning on projected orbital lines in an N-body simulation of our solar system and seeing what happens when you toss a star in there is really enlightening... the rings all shift in tandem in a visceral way that really helps me "feel" what happens. There's a simulation that comes out of the box that simu…