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[Removed poor joke, no one thinks it's funny and it's attracting downvotes.. Please stop hurting my karma. I can't delete this post anymore either. Sorry.]



> Maybe we're just looking at an event that happened on Earth 2 * the distance in light years ago.

A very interesting idea!

Although I don't think that the black hole cared much of those few photons from earth.

Expanding it, how long until my hand waving could cause a strong enough "butterfly effect" for an observable cosmic phenomenon to occur beyond our solar system?

A million years? 100 million?

Edit: Thank you for your comment. Just keep it! Sometimes people here are just a bit quick to judge. It's amazing to think humans could have affected such a monster at all, no matter how little. Even for a handful of photons worth.


Expanding it, how long until my hand waving could cause a strong enough "butterfly effect" for an observable cosmic phenomenon to occur beyond our solar system?

My rough estimate says around 9 years, and 3 months.

The essence of chaos is that effects grow exponentially with time. For example with weather, errors in measurement lead to roughly an order of magnitude in errors in measurement every 3 days. Going from the scale of a single atom to the scale of a star is about a range of 10^60. At that rate of exponential growth means that in 180 days, which is 0.5 years a single atom out of place leads to a different outcome for things like solar flares.

Therefore a photon from your hand moves one atom on Alpha Centauri about 4.367 years later. A half-year later it causes the difference between a solar flare being there or not. Then 4.367 years later it comes back here. And the result is that in roughly 9 years and 3 months, one photon from your hand could have caused a visible change in another star.


From your replies, it sounds like it was funny! Sad for me that it’s now outside my reference frame


vardump quoted it in full in his reply here: https://news.ycombinator.com/item?id=20690603


Why multiply by 2 ?


OP is hypothesizing that an event happened on earth which emitted something traveling at the speed of light[0], traveled some distance, then interacted with some object which emitted something else[1] which traveled back to be observed on Earth. Hence, double the distance between Earth and the black hole, because it's traveling twice.

I'm not sure exactly what OP is implying though.

[0] light, radiation, information, etc.

[1] ie, reflected, or caused some reaction


I suspect this is a backhanded reference to The Three-Body Problem series by Cixin Liu?


> I'm not sure exactly what OP is implying though.

The destruction of Atlantis?


Atlantis is usually put at "just before history" -- Atlantis was destroyed and then their survivors did all the impressive stuff around the world like building the pyramids and Stonehenge, so around ~5000 years ago.

You're looking at something more like 50,000 years ago, so something like the Toba population bottleneck (which probably didn't happen 70,000 years ago).

The cleansing of saidin in the previous turning of the Wheel, might work.




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