Cosmic crystallography

Cosmic crystallography is a technique used in physics and astronomy to determine the possible topology of the universe (e.g. a torus, 3-sphere, etc.). Astronomers observe sources of high redshift and look for repeating patterns that may indicate the connection of edges.

Pair separation histograms

Cosmic crystallographers use cosmic separation histograms to infer characteristics of the universe. Large spikes are expected to appear if the universe is not simply connected.

gollark: What we really need is free and open source cars.

gollark: And if you don't update the software your car might just go "nope, you're not using this".

gollark: Tesla more so. They have some "extra acceleration" purchase for old cars which seems to just change some software settings and costs $2000.

gollark: They do seem to have not very user controllable software.

gollark: Wouldn't you expect any sort of big advantages Tesla has to already be reflected in the price of its shares?

References

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