If they were different, our Universe that we inhabit would be an extremely different place from the way it is today. Evgeny at English WikipediaWhat if the fundamental constants are different for their Universe as compared to our Universe? For example, it's possible that there are different fundamental forces, particles, and interactions in their Universe as compared to ours. They may be made out of some form of material that behaves like matter, antimatter, or something entirely new. Fermilab TodayDoes mass mean the same thing in their Universe as it does in our Universe?

Source: Forbes April 04, 2019 06:00 UTC