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Hakeem Oluseyi

๐Ÿ‘ค Speaker
304 total appearances

Appearances Over Time

Podcast Appearances

StarTalk Radio
Hubble Trouble with Hakeem Oluseyi

It's a little known paradox.

StarTalk Radio
Hubble Trouble with Hakeem Oluseyi

It's a little known paradox.

StarTalk Radio
Hubble Trouble with Hakeem Oluseyi

Well, here's what you would think. You would think the light is arriving right now. We should all be receiving this light, but that's not how it works. motion changes the perception of time. And so we know about that in terms of the local universe. We call it relativity of simultaneity, right? You're moving, I'm not. You see events as simultaneous.

StarTalk Radio
Hubble Trouble with Hakeem Oluseyi

Well, here's what you would think. You would think the light is arriving right now. We should all be receiving this light, but that's not how it works. motion changes the perception of time. And so we know about that in terms of the local universe. We call it relativity of simultaneity, right? You're moving, I'm not. You see events as simultaneous.

StarTalk Radio
Hubble Trouble with Hakeem Oluseyi

I see them as happening one before the other, right? But then when you add the distance component in it, now we see very different times. So there could be a third person moving in the other direction seeing a different time. So how do you define what now is? So we don't even understand time.

StarTalk Radio
Hubble Trouble with Hakeem Oluseyi

I see them as happening one before the other, right? But then when you add the distance component in it, now we see very different times. So there could be a third person moving in the other direction seeing a different time. So how do you define what now is? So we don't even understand time.

StarTalk Radio
Hubble Trouble with Hakeem Oluseyi

There's an illusion of now because we're so close together and we're so small, the speed of light makes it feel like we have a now, right? But now doesn't really exist on larger scales. There's no such thing. But there always has to be a now in all seriousness. No, that is your bias. That is your bias. That's so Galilean Newtonian.

StarTalk Radio
Hubble Trouble with Hakeem Oluseyi

There's an illusion of now because we're so close together and we're so small, the speed of light makes it feel like we have a now, right? But now doesn't really exist on larger scales. There's no such thing. But there always has to be a now in all seriousness. No, that is your bias. That is your bias. That's so Galilean Newtonian.

StarTalk Radio
Hubble Trouble with Hakeem Oluseyi

Well, what was the question again? Because they're talking about time, right? And they're talking about now or something. And I'm just like, that now doesn't exist.

StarTalk Radio
Hubble Trouble with Hakeem Oluseyi

Well, what was the question again? Because they're talking about time, right? And they're talking about now or something. And I'm just like, that now doesn't exist.

StarTalk Radio
Hubble Trouble with Hakeem Oluseyi

Right, you curve space and you stretch time, right? It's kind of the idea like what a black hole does, right? Curve space, you know, time moves more slowly relatively. But these phenomena of gravitational waves are incredibly subtle, and so the real calculation to do is what type of gravitational wave would be necessary. It's like the big wave.

StarTalk Radio
Hubble Trouble with Hakeem Oluseyi

Right, you curve space and you stretch time, right? It's kind of the idea like what a black hole does, right? Curve space, you know, time moves more slowly relatively. But these phenomena of gravitational waves are incredibly subtle, and so the real calculation to do is what type of gravitational wave would be necessary. It's like the big wave.

StarTalk Radio
Hubble Trouble with Hakeem Oluseyi

for that to happen. To be felt. To be felt, right?

StarTalk Radio
Hubble Trouble with Hakeem Oluseyi

for that to happen. To be felt. To be felt, right?

StarTalk Radio
Hubble Trouble with Hakeem Oluseyi

You ain't feeling that. But we know they were gravitational waves. Well, yeah, we measure them, right? So, you know, you want to think of what event, what magnitude of wave do you need, intensity, and then calculate what sort of event.

StarTalk Radio
Hubble Trouble with Hakeem Oluseyi

You ain't feeling that. But we know they were gravitational waves. Well, yeah, we measure them, right? So, you know, you want to think of what event, what magnitude of wave do you need, intensity, and then calculate what sort of event.

StarTalk Radio
Hubble Trouble with Hakeem Oluseyi

So you get compressed to nothingness, you get ripped apart. This is like a sci-fi thing, right? The gravitational wavenator.

StarTalk Radio
Hubble Trouble with Hakeem Oluseyi

So you get compressed to nothingness, you get ripped apart. This is like a sci-fi thing, right? The gravitational wavenator.

StarTalk Radio
Hubble Trouble with Hakeem Oluseyi

You know what that means? Be even more loquacious.

StarTalk Radio
Hubble Trouble with Hakeem Oluseyi

You know what that means? Be even more loquacious.