
13 ideas about #spacetime have been added on IdeaMill.
Cosmological Natural Selection
You know. The constants of nature are so precise and perfect to... Read more
Ringularities
Singularities in spinning blackholes that are shaped like a ring. Read more
You cannot tie a knot in 4 dimensions
I heard about this but unsure if it is true as I... Read more
If one of the spatial dimensions only went one way (like time does) would it make you go left, right, up north or down south?
More of a question than an idea, but thought-provoking nonetheless. Read more
We are a side effect of a universe trying to increase its entropy
Stands to reason. First heard about this idea years ago, but this... Read more
Your head is older than your feet – due to time dilation
Your feet have been slightly closer to a denser region spacetime for... Read more

Entropy ain’t what it used to be ;)
“I remember when all of this was (quantum) fields – time-reversal symmetry... Read more
Space(time) tells matter how to move; matter tells space(time) how to curve
This is John Wheeler’s succinct summary of general relativity – which was... Read more
