*promote

Self promoting this video and sending it back into the queue for one more try; last queued Thursday, May 29th, 2014 2:32am PDT - promote requested by original submitter nanrod.

Learned some science today *quality

Boosting this quality contribution up in the Hot Listing - declared quality by eric3579.

I question accuracy of this video...If it's not wrong, it's gotta be extremely oversimplifying or misrepresenting some aspects of what's covered there...

Veritasium youtube comment:
Some people have been sending wikipedia references saying parts of this video are wrong, but I think it's wikipedia with the misconceptions. For further reference check out this paper: http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=8838887

Fascinating stuff.

It is simplified.

Some of the concepts are actually pretty hard to put into words and just are how they are. And for each cosmologist you speak to you will encounter a different opinion of the standard cosmological model or parts of its construction.

There are parts of it i don't like because i can't follow and feel comfortable with each step. The maths makes sense, but there's nothing logical and connected in my understanding. At first i didn't like that, but then i realised that we all accept quantum mechanics where charged particles accelerate without radiating, and "instantaneously" move between distinct energy levels.......

In other words, every physical law we've got is just our primitive way of understanding the signals sent from our senses to our brain. Things seem to make sense to us the more experience we have with it happening. We don't understand why matter moves towards other matter via "gravity" - a word which we accept and go 'ahhh gravity - i understand now' but why the hell should it and/or why should it exist in the first place merely to move towards one another?!

So gravity attracts things (why?!) and time only runs in one direction (why!?) and energy is quantized according to the planck constant (WHY!?) and ... the universe is more or less like it's shown in the video! But why why why!? Well, that's a question for a philosopher.

This is a great illustration of how I feel every time I try to wrap my head around this stuff; to really understand it, you somehow need to keep in mind everything you know, while rejecting the "obvious" conclusions you draw from that knowledge because you have to be open to the new knowledge you're going to insert that causes you to adjust the knowledge you already had.

It's always astonishing to me that there are enough people on this planet with the necessary mental flexibility to keep pushing the boundaries of our understanding of the universe, because I can just barely understand so many of the things they've figured out.

Tags for this video have been changed from 'veritasium, space, universe, lightspeed, observable, hubble, derek, muller' to 'veritasium, space, universe, lightspeed, observable, hubble, derek muller' - edited by xxovercastxx