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Sara Imari Walker

Sara Imari Walker

American physicist

Aug 15, 2026

23:16
And, like, what's your personal relationship to time?
23:20
Well, I, you know, like, most people, I kind of hate that my time is finite sometimes.
23:24
Like, it keeps me up at night sometimes.
23:27
But I also kind of love it.
23:28
So I'm not one of these people that would want to be immortal.
23:33
Like, that concept actually really... uh, bothers me.
23:37
Um, and in part it bothers me because of my scientific work, because I, I see so much that the fundamental nature of life is really about what we were talking about earlier.

48 MINS LATER

72:05
i think this like this is bringing me to something and i'd love to like try to connect the dots here i loved it was so beautiful before when you said theories are technologies of perception did you did you realize you said that before yeah
58:04
Mm-hmm.
58:04
So the traditional debate around free will is the underlying laws of physics are deterministic, therefore there's no possibility for it.
58:10
So you, like, you really-- And, and that to me is a really interesting intellectual leap that a lot of people have chosen to take because the laws of physics as we understand them now have nothing to do with life.
58:20
Uh, like nothing, except for the fact that intelligent living things built experiments to confirm these mathematical relationships describe things outside of them.
58:30
Like, that's the only relationship those laws have to living things.
58:33
[laughs] And so, and then yet we use that as an inference to say reality is fully deterministic, and there's no possibility of free will.
58:42
Um, and so, so that to me is, is missing a lot.
59:58
So what do you mean by that?
43:14
I don't know if you agree with that, Sarah.
43:17
I do.
43:18
I just want to pick up on because you're talking about the scaffolding and the contingency.
43:22
And so I think to kind of because I think something is in the conversation getting a little muddled.
43:28
Like you need to make a distinction between clock time and causal time.
43:32
And what Lee and I are talking about causal time.
43:34
And so clock time is about the synchronization of physical devices.

21 MINS LATER

64:29
Is that where you were going to go?

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