https://aeon.co/essays/what-can-schrodingers-cat-say-about-3d-printers-on-mars
Is a self-replicating 3D printer alive?
If we come across aliens that have replaced their biology with metal, plastics, and processors will we claim they aren’t actually life?
What if they’ve replaced their bodies with purely digital manifestations of themselves? Are they “alive”?
https://www.engadget.com/2019/06/13/elon-musk-the-simulation-video-games/
“We could be somebody’s video game right now. Whose avatar are you?” – Elon Musk
“if reality was a video game, the graphics are great, the plot is terrible and the spawn time is really long.”
.. I think we lost the plot.
“Questions abound about how the various proposals intersect with anthropic reasoning and the infamous multiverse idea. The no-boundary wave function, for instance, favors empty universes, whereas significant matter and energy are needed to power hugeness and complexity. Hawking argued that the vast spread of possible universes permitted by the wave function must all be realized in some larger multiverse, within which only complex universes like ours will have inhabitants capable of making observations. (The recent debate concerns whether these complex, habitable universes will be smooth or wildly fluctuating.) An advantage of the tunneling proposal is that it favors matter- and energy-filled universes like ours without resorting to anthropic reasoning — though universes that tunnel into existence may have other problems.”