No, the double-slit experiment does not indicate that we are in a simulation. The double-slit experiment is a well-known experiment in quantum mechanics that demonstrates the wave-particle duality of particles like electrons or photons.
In the double-slit experiment, when particles are sent through two slits and allowed to interfere with each other, an interference pattern is observed on a screen behind the slits. This behavior is consistent with the wave-like nature of particles and can be explained by the mathematical formalism of quantum mechanics.
The suggestion that the double-slit experiment implies we are in a simulation is based on a philosophical interpretation known as the simulation hypothesis. The simulation hypothesis posits that our reality is a computer simulation created by a more advanced civilization or entity. However, this hypothesis is speculative and falls outside the realm of scientific inquiry as it currently lacks empirical evidence or testable predictions.
The double-slit experiment, while fascinating and demonstrating the peculiarities of quantum mechanics, is well understood within the framework of quantum theory. It does not provide direct evidence or implications for the simulation hypothesis or the nature of our reality.