Of all the people featured here, Sean Carroll is one of the best at communicating clearly and precisely.

I love how Brody keeps asking the right questions thus leading into a more interesting video

Hes such a great communicator

I want this guy as my prof, I could listen to him for hours, his voice is so soothing lol

I love this guy, please do more with him!

Who the hell scrambles an egg with the shell still in

Liked for teaching me the word "retrodicting."

The arrow of time sounds like something you'd find in a treasure chest in a Zelda game

There's loads coming out this week across my channels!

Time flies like an arrow. Fruit flies like banana.

Brady, I love what you have done for us here with all these channels. I don't think I've ever learned as much as when you interview these brilliant people. And your way of asking questions just shows what a great view of life you have and how you really burn for these types of questions. These channels are my go-to place whenever I need a thoughtnugget, thank you so much for doing this for us!

Really enjoy the videos you've made with this guy Brady. He explains things very clearly and in a lot of depth and his analogies are so insightful.

I left a glass of water on my bedside table last night and when i woke up there was ice cubes in it. Forgot to say I went to sleep outside at the south pole...

mentions breaking an egg and scrambling it dumps whole egg in a bowl and tries to beat it

Brady, you do a really great job editing these videos. Enjoyable to watch.

The fluency and clearness in they way he talks is perfect.It makes those who don't have a physics background help get a grasps on these fundamental ideas. As can be said about all the other talkers on sixtysymbols, and Brady's other channels. Bravo.

great to hear - thx

"goes up and and down".. funny face realizing that his hand went in the other order.. "I should say down and up" LOL

I love the explanation. Also I love the equations on the board in the background. Details like that can make one feel a lot better, and contribute to a video's quality.

what an incredibly enriching chat! this channel is a goldmine for the mind, this should also find itself featured on the front page of youtube alongside of all the banal content.

He reminds me of James Woods. Wish I had a physics professor like him at university...

Entropy is not what it was.

What makes these videos damn awesome is the fact that Brady always asks the questions the rest of us are thinking about. That's why I love these videos and think that these are more educational than many straight up explanation or teaching videos of the same topics.

Please tell Sean that he needs to narrate a documentary at some point in his life. He is so good at explaining things and I could easily listen to his voice all day!

Time flies like an arrows, fruit flies like a banana . :D

The Jack Bauer of Science.

I like this guy. He explains things very well and is enjoyable to listen to. Please include him in more videos.

I love Sean Carroll and I love Sixty Symbols! How did I miss this one.

8:13 interviewer- time rules your life.. the guy- no one rules my life..(say one more word and imma punch you in the face!!)

Does that mean the time on the other "side" of the big bang has an arrow of time going away from us? :D

By the way, thanks for being probably the most insightful and broad-ranging youtuber there is :) Keep up the awesome stuff, you inspire alot of people to take up particle physics, mathematics, etc. through your videos.

Excellent video! I would like to see more of this professor!

I thought he was talking about One Direction

Has he ever thought that maybe it could be a big ball of wibbly wobbly timey wimey stuff?

Great video, a very clear way to explain the systems we have to use. Although as one of my 1st year students pointed out to me before. The pendulum does slow down.

Congratulation to Brady and Dr. Sean Carroll for the great video! It was such a good conversation! Thank you very much

Excuse me, but I remember what happens tomorrow p.o I uh... eat cereal. And do stuff... Yes.

Time seems to be as physical as it does metaphysical..

I really love this guy. To me he has a incredibly good interpretation of "things".

"Retrodicting"! A wonderful word that I hadn't come across before. Thanks for that.

I don't believe in an 'arrow of time'. I believe that time is just like space, it has no natural direction in which it progresses. The arrow of time I think is an illusion created by the fact that we remember our past and not our future. This gives us the illusion that we are progressing in time and essentially moving from our birth to our death at a fixed rate. This rate would be the speed at which our brains process information and turn the information into short-term memories. I believe that all our versions are existing and real, just as real as a third spacial dimension is compared to the second. Only those versions have different memories which makes each version think it is progressing in time. This is a really interesting way of looking at the difference between the world the way perceive it and the world the way it actually is, with 4 dimensions rather than 3 dimension of space and 1 progressive time dimension.

"our universe started in a state of exquisite order" solid quote right there

I could listen to Mr. Carroll talk for hours. His mannerisms, speech patterns and inflections make him very interesting to listen to, while his explanations are well articulated for folks who haven't a clue what he's on about going in. He makes complex subjects easy to listen too, and hopefully learn a little from.

Sean Carroll videos are always good :) more of that !

I gotta look that up in that case! In the few videos he has been in on sixty symbols he's starting to become one of my favorite "stars". The way he explains things is extremely clear and always spot on. Enough detail to keep it relevant and correct, but simplified enough so us normal people can understand it in one go. Quite honestly I'm baffled after every video with him in it. Such a smart and inspiring man to listen to.

He's got a good voice and style for this kind of thing. Very clear and engaging.

I quite enjoy these videos with Dr. Carroll, do you have plans for any others?

just realized this is the guy that does some of the best pieces of work for the great courses. if you have audible its a must buy

This guy is excellent with... everything relating to what this channel tries to achieve.

I've heard this explained before, but not quite as well. Thanks Brady and Sean!

I really liked this episode. This is the kind of thing I like to learn or hear about.

Just love these types of vids!

Thanks for the educative explanations for such difficult questions!

I agree, man. Awesome job! Love this channel. Keep up the good work.

So many Brady Haran videos released in one day. Today is a good day! :-)

Amazing video, thanks for making this information available.

Finally! I was waiting for this since january.

Awesome video ! Sean Carroll is a great explainer

Thank you a lot for these videos .

Stunning line of arguments.

I like the way he talks - very clear and concise.

I enjoy his voice and how he formulates what he says.

This guy is great. keep up the good work as always

Love this guy's voice. I could just listen to him talk physics all day.

Truly excellent explanation. This man is a fantastic teacher.

Very good questions Brady. Awesome video!

I really dig Dr. Carroll! I could listen to him talk about physics for hours (and have thanks to a number of talks available on KZfaq!). Make sure Brady you corner him every chance you can get! And keep up the excellent work. I would like to see more 60 symbols videos (as much as I like Numberphile I love me some physics...)

This channel is regularly blowing my mind. Thinking of time as a similar function of gravity just turned my views upside down.

this channel is heaven. thanks.

By the way, I think you explained this topic marvelously. Congratulations!

"air molecules" apart, i get really excited when i watch this kind of video! Its awesome beacuse It not only teaches us how the universe works, but give us something to thing about. But, if you allow me, Brady, for most of the topics covered in your videos, 10 minutes is not enough. As Derek, from Veritasium2, said in his last video: "...there are things that get better just by lasting longer."

As about 12 people have mentioned before me, Sean's voice is great. The topic/discussion was great too, but there are lots of those on this channel. Sean's voice stands out notably.

his voice is very pleasing, it is easy listening to him

I wait in anticipation of these videos! Awesome stuff. Does anyone know what "Sixty Symbols" referances?

This was really interesting, thanks!

Very Interesting video, as usual from sixtysymbols, thank you! It did however somewhat strike me as odd to say that Aristoteles didn't give time much thought, when in fact his fourth book has four chapters devoted to time. Sure they were not the last words on the subject, but there were some serious philosophical fundamentals laid there.

This was an eye opener!

Hi - any reason why you didn't ask about the delayed choice quantum eraser in respect to the arrow of time?

Yes! Thank you Brady!

I was just watching a Bryan Cox lecture on this :)

Professor - look into the discussion of time in St. Augustine's Confessions books ten and eleven. I don't remember whether he considers the arrow of time but he has some surprisingly modern-sounding ideas about time and human memory - back in the 400s AD.

Finally! I was afraid you had given up on sixtysymbols. Thanks, Brady, once more you saved Townsville.

Check the Sixty Symbols website!

Thanks for everything !

Thanks for this video!

Great video! The most awesome is the idea of comparing time and space - "space has `arrows` when near a big body" and "time has `arrows` when near a big event"

Well done Brady :) I liked this one!

In the video "Relativity Paradox" on this account, simultaneous events can occur at different times. If the trainspotter was on the end closest to the entrance then the train would first see the guillotine come down, and then see them press the button after the train was through. By changing your momentum you can alter time in the area around you as well, until you stop accelerating and move at a constant speed.

great video as always :)

Awesome questions Brady!

Retrodict. What an awesome word. I'll try and use it tomorrow!

great video, thanks

This guy is fantastic at explaining things.

New Computerphile, Numberphile, and Sixty Symbols videos within a week. I think my head just exploded!

Nice and crunchy!

Are there any Brady branded videos which explore the relationship of gravity and time?

Sean Caroll is awesome, his General Relativity book is great.

This was a great one

Would have liked a link to the full video of the preparation of the Nottinghamshire crunchy omlette.

Could photon energy form the process we see and feel as the flow of ‘time’ a process of continuous energy exchange or continuous creation? With light being a wave over a period of time and a particle as time unfolds with each photon electron coupling. The electron is the most spherical object in the universe so this can form the low entropy for the increase in entropy that we have in the Second Law of Thermodynamics.