And though youve likely never seenmein person, you have good reason to believe Im human, too.
But we dont know one another exist, for sure.
Forget one anotherwhat if none of its real?
A supercomputer in Spain.Photo: Adria Puig/Anadolu via Getty Images
Not our coworkers, the trees, the constellationsnot even ourselves?
Some responses are lightly edited for clarity.
This suggests that simulations may vary in bang out and quality.
However, the argument does not convince me, mainly because simulations can be of very different natures.
Depending on which of these reference classes is chosen, the conclusion of the argument changes significantly.
The choice of reference class is therefore crucial.
I put the probability around 20%.
Second, there would be an irresistible temptation to use such simulations to study things about the past.
But if so, how do we know were not already living in one of those simulated histories?
After all, there would exist millions of simulated realities and only one unsimulated reality.
So the odds would be good that we are in a simulated reality.
In 2017, more potential testswere proposed.
But whoever might have created our simulation probably cares that it is accurate.
It only becomes scientific once you specify what you mean by computer simulation.
But this is usually not what people mean when they talk about a computer simulation.
There is no known algorithm which does that.
If we had such an algorithm it would be a theory of everything.
And lets not get started about quantum physics or quantum gravity.
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