Check out the math & physics courses that I mentioned (many of which are free!) and support this channel by going to https://brilliant.org/Sabine/ where you can create your Brilliant account. The first 200 will get 20% off the annual premium subscription.

In the past years you may have seen headlines claiming that objective reality does not exist because some quantum mechanics experiment has shown it. In this video I explain what this is all about and why this experiment doesn't show that reality doesn't exist.

You can support me on Patreon: https://www.patreon.com/Sabine

Here are some of the articles I am commenting on:

https://interestingengineering.....com/new-physics-exp
https://www.newscientist.com/a....rticle/mg25233590-80
https://www.space.com/quantum-....paradox-throws-doubt
https://www.livescience.com/ob....jective-reality-not-

The Frauchinger-Renner paper is here: https://www.nature.com/articles/s41467-018-05739-8

Brukner's no-go theorem is here: https://www.mdpi.com/1099-4300/20/5/350

And the paper about the experiment is here: https://www.science.org/doi/10.1126/sciadv.aaw9832

0:00 Intro
0:51 Wigner's friend
5:03 The Extended Wigner's Friend Scenario
8:18 The experiment that shows reality doesn't exist
9:12 What does it mean?
10:04 Sponsor message