The interviewer considers Twitter data noisy because users may post irrelevant or market-manipulative content, making it of limited trading value.

“And it's very noisy, and, and some... And so then my, my eyes goes up because I don't know if I would trade on those things because- Mm...”

“sometimes people do just talk random crap, and sometimes people try to manipulate markets by- Yeah... saying stuff, and it just doesn't matter that much.”