sevensages's latest activity

It might have been better to call it "straight space", because if not influenced by anything light goes in a straight line. Or maybe...

I haven't read Tegmark so I can't comment on the book. However, on the frontiers of physics we have not settled what the correct view...

@berkeman @jefferywinkler3 @Ibix What do you think about Demystifier's post #5 on this thread? Do you agree with @Demystifier ?

That is mighty interesting and informative. What do the letters GR mean in "standard GR cosmology"?

No. You can measure curvature without reference to any higher-dimensional space that the curved surface might be embedded in - so the...

If the angles of a large triangle added up to more than 180 degrees or less than 180 degrees, meaning that we live in a close or an open...

That definitely makes sense. Thank you for your answer. I would have never figured it out on my own.

Flat in this context means that it obeys the rules of Euclidean geometry - for example, if you draw a triangle its internal angles will...

In Max Tegmark's book Our Mathematical Universe, Tegmark wrote the following: "As we saw in the last chapter, we've measured our space...

Here is my extremely brief review of page 101 to the end of Our Mathematical Universe. On page 104 Tegmark writes the following...

Why do you think that Tegmark assumes that the map is the territory?

What the heck does that mean? I am totally baffled. What map are you writing about?

The map is not the territory. But Tegmark assumes that it is, and then develops this assumption to its logical conclusion. For me, it's...

@jefferywinkler3 please give me your feedback on this thread

When explaining this to your friend it may also be relevant (as you may already know) to mention that in the context of the two-body...