Evidence receipt / uncertainty
Published · transcript-backedLisa Randall: uncertainty
3 Dec 2023 Lex Fridman Podcast #403 – Lisa Randall: Dark Matter, Theoretical Physics, and Extinction Events
“We actually don’t know what dark matter is in the first place, we don’t know what most of it is, we don’t know what a fraction is.”
Source trail
Everything needed to verify it.
- Speaker
- Lisa Randall
- Attribution
- Verified speaker
- Claim type
- uncertainty
- Recorded
- 3 Dec 2023
- Publisher
- Lex Fridman Podcast
Transcript context
…Okay, so not all dark matter is made the same. That’s a possibility. We actually don’t know what dark matter is in the first place, we don’t know what most of it is, we don’t know what a fraction is. It’s hard to measure. Why is it hard to measure for exactly the reason you said earlier, we don’t see it. We want to think of possibilities for what it can be, especially if those give rise to some observational consequences. It’s a tough game because it’s not something that’s just there for the taking. You have to think about what it could be and how you might find it. The way you detect it is gravitational effects on things we can see.…
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