The Biggest Ideas in the Universe | 5. Time

Comments · 664

• PR

  @pranaysheshak5931 · 6 years ago

  Watching this at 1.5x speed and thinking "I live life faster than 1 second/second"

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• FI

  @FigmentHF · 6 years ago (edited)

  Thank you for all your time and effort. I left school with no real education, but I find all this stuff fascinating. It always felt academically impenetrable to me, and while I do occasionally get a bit lost, I can actually follow along with most of it. <br><br>You’re a great communicator and teacher, you can convey complex ideas without being too esoteric, and yet you don’t tend to over simplify difficult concepts. It feels very genuine, honest and accessible. <br><br>Thanks again!

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• CO

  @CoreyChambersLA · 6 years ago (edited)

  Sean Carroll is among the greatest teachers of all time.

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• DE

  @dennisgalvin2521 · 1 month ago

  According to this, Time is the measurement of Events happening in Space.

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• KO

  @kostanchik10074 · 6 years ago

  Please, don’t stop these videos. This format is awesome!

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• DE

  @decorator_name · 6 years ago (edited)

  Wish you talked about time itself, and how it (&amp; mass) are emergent properties of timeless &amp; massless particles bumping around fields, resisting acceleration.

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• WA

  @wagfinpis · 6 years ago

  I can not get enough of Sean&apos;s awesome consideration&apos;s. <br><br>Great sense of humor, I love this guy every time I tune in!<br><br>Only way to keep the appreciation short is to not even begin to mention it.

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• RI

  @richardofoz2167 · 6 years ago

  Your description of psychological time at around 39-40 minutes is fascinating. <br><br>Many years ago, when I was young and embarked on open-ended travel for the first time, I found that writing at intervals to my family at home was a weird experience for me. Reviewing my diary for news to send home, I found myself amazed that so much had happened in the previous week or fortnight. (&quot;Was that just last week? It feels like 6 weeks ago!) <br><br>Somehow, time had been &quot;stretched&quot; to a significant degree, and it struck me how differently time is experienced while traveling than while working.<br><br>I attributed this to the fact that in a work routine, experiences are, to a high degree, predictable. Most people can anticipate reasonably well what they will be doing next Thursday morning or the Thursday morning after that. Consequently, little seems to happen. I frequently had the experience of talking to someone after a break of some weeks and finding I had no news to report to them. I think this is quite common. (&quot;What&apos;s news?&quot; &quot;Oh, nothing.&quot;)<br><br>When travelling, however, the reverse was true. Upon waking each morning, we generally had no idea where we would spend the night or who we might have met and what we might have done during the day. So looking back on my recent experiences, I would be amazed at how &quot;full&quot; life had been. For a long time I attributed this richer experience to travel itself, and work itself. But of course, it&apos;s due not to travelling or working as such, but to the lack or abundance of new memories, which is how we experience time.<br><br>You have finally made clear to me - 50 years after the fact - what this experience of mine was all about.

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• JA

  @James-fe7wd · 6 years ago

  You sir have an incredible gift as an educator

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• 73

  @733eel · 6 years ago

  I use to watch you back in the day i think it was the Universe or some series. &nbsp; You have always been able to talk to me as the years go on. I have no background in physics/maths but after a few years of watching your lectures and the many others like you &nbsp;it starts to make sense. Anyhows I guess all I wanted to say was thank you for being here all these years. Cheers

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• GK

  @gkelly34 · 6 years ago

  Wish I had a physics teacher like this at school. Fascinating stuff

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• MG

  @mgenthbjpafa6413 · 6 years ago

  Sean has become, over the last decade, my most admired personality in terms of pedagogy inspiration on top of his explicit expertise on QM, we feel the joy of acquiring knew skills, confronting the edge of Human Knowledge. This may be a truism, but it must be acknowledged...Congrats, once more.

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