I was one of the people who thought there might be many dimensions, like 10, 11, or 26. But it turns out there are just 4. 3 of space and 1 of time. Now I'm not sure what to believe. Does this seem strange to you too??? Just Four Dimensions in the Universe, if You Believe Gravitational Waves https://science.howstuffworks.com/j...n-universe-if-believe-gravitational-waves.htm
Yes. "Turns out there are just 4." Humans know that because they've been far and beyond in a thousand Galaxies.
It's probably only 4 dimensions at large sizes ... If extra dimensions do exist, they must be really, really small http://www.foxnews.com/science/2018...ons-do-exist-must-be-really-really-small.html ... but apparently this doesn't rule out 10+ dimensions at small scales.
