Recent content by ricardo81

Why not? I'm aware that since Einstein that space and time is essentially considered as spacetime, but beforehand time did indeed make some kind of sense to us mortals.

As title really, just an idea I had from various videos and articles I've read as an enthusiast of all things physics. Some supporting sentences from my somewhat ignorant but perhaps not-entirely-wrong thinking: - The velocity of stars around the periphery of galaxies, I've heard of a theory...

Thank you for the elaboration, and the terminology shall keep me busy reading extra material trying to build up a better picture of where current thinking is. I'm taking a view that information is the fundamental property of the universe, and space/time in our plane of existence is performing...

Thank you nalma.I ended up on the wiki page for AdS/CFT and there's a lot of meat to digest. It seems like the fuzzy idea I have is similar in notion to compactification.

Thank you for the replies, both of you. I think I'm OK with where the information is going within the black hole, I'm thinking more about the bits of information and the reversibility of the process. I guess there's the subtle difference between 'the sum of bits' and 'the sum bits in their...

I take an interest in physics in my spare time (in IT during the day). I have a query regarding the 'problem' of information loss at a black hole, and would be grateful for some enlightenment. It seems generally regarded that any information going past the horizon of a black hole is...

Thanks, that's the impression I get. There are a lot of theories, some more popular than others. I was thinking with regards to the 2nd point about information and black holes, there would be the potentially to measure 'bits in, bits out' if it were possible to create a black hole.

As a general amateur enthusiast of physics, I've been reading about various proposals regarding a multiverse, beyond the big bang and the borderline philosophical concepts of beyond the big bang. I 'warm' to Lee Smolin's Fecund Universes idea. A universe is born... with slightly different...

The metric expansion of space affects the time taken to see, as it affects the distance over time.

So I can reasonably assume that every point in a horizon is reachable from every other point?

Understood Understood Thank you for replying. I worked it out to be something of the order of 7.4945e-59 Degrees ... I guess I had a misconception about Planck lengths somehow being used as indivisible units. My reason for wondering was whether there could have potentially been parts of the...

I guess I am assuming pixelation, or perhaps whether there is a potential limit in the directional freedom of travel. My maths is not the best so I can't put a number to the degrees of that angle.

(from my limited understanding) In our observable universe a photon could travel say, 5 billion light years in a straight line if unperturbed. Call the points X and Y traveling down-up. If point X was moved one Planck length to the left, would it still be able to travel exactly to point Y?

I think you just encapsulated my query better than I ever could.

The point I meant was that a computer is just a tool, and you may have a preference in using one to achieve something that you can effectively do in your head, or by hand. It's just a tool. A preference to not using a computer doesn't really fit in with what I originally put into the thread, it...