I always find quantum physics fascinating, but I find many people don't understand its role in science and philosophy. In fact, many people don't even understand it at all. I don't claim to understand much of it, but enough to call BS when I see it.
Many people don't seem to understand that mathematics is a language to describe observed phenomena, and physics is applied mathematics. Nobody ever seems to forget that at a macro level, but it seems to be forgotten at the quantum level. What I mean by that, is that if I said I had 3 apples, and you gave me 3 more, everyone understands that addition represents the reality that I have 6 apples now, not that mathematics causes me to have 6 apples.
However, at the quantum level, that seems to be forgotten. The universe *is* mathematics. It's not, it can just be accurately described by mathematics. The benefit of mathematics, especially at the quantum level, is that it enables us to predict and manipulate reality. The same way as understanding basic arithmetic allows us to say "If I need 6 apples and already have 3, I know how many more I need to pick to get the desired number".
One day, quantum maths may let us defy gravity, travel through time, or faster than light through space.
Anyway, what I am getting at, is take these types of videos with a grain of salt. They are enjoyable, but don't accept the conclusions they give you as gospel truth. Firstly, I note that the presenter's manner can be a bit puerile and misrepresent the alternative evidence, but second, science is useless, unless it answers a "so what".
So what if we are living in a simulation? Or is it just that base reality has pixelisation? Are we an extrusion/projection from a 10 or 11 dimension universe like the old string theory? Or are we a terrarium created by God?
A philosophical joke told to me once, helped me understand the role of science more: A young boy asks his dad "Why is the kettle boiling?" The dad puts down his paper, pushes up his glasses and says "Well son, when the methane coming out of the stove combines with the oxygen in the air, energy is released from moving molecules from a more energetic state to a less energetic state. This energy is translated into motion at the molecular level. This causes the particles to collide first with the metal at the bottom of the kettle, then into the water inside the kettle. As the water gets more and more energetic, it breaks the inter molecular bonds, and escapes as steam, pushing through the spout and causing the kettle to whistle".
Not understanding the answer, the little boy asks his mother the same question. She replies simply "Because I'm making a pot of tea for all of us."
Quantum physics can answer the how, but it never answers a why, or what does that mean.