The argument that we likely live in a simulation is similar to the the cosmological argument that allegedly proves the existence of god; and it rests on the same unsound assumption, namely that the existence of entities in reality follows from the rational arguments that your mind can imagine about those entities.

Sound approaches to knowledge must operate in the opposite direction, drawing insights from observation of phenomena existing in the world.

Assuming that the world is as we deduce it to be, without then proceeding to check that the world behaves in accordance with our deduction, is a failure that delayed the advance of knowledge until the use of the scientific method became widespread.

I'm saving this comment so that next time someone uses "begging the question" incorrectly, I can show them what it really means.

Ex falso, quodlibet sequitur.