2) Anti-weird biases are likely to be stronger in person.
3) People who find cryonics attractive are more likely to learn more about it and to seek out discussions of it. In a small group environment, people instead just comment on whatever is being discussed. So most LW types may be uninterested in cryonics, either because they find it facially implausible or immortality unappealing, even while most LW types who actively discuss it online find it plausible and appealing.
1) Sample size.
2) Anti-weird biases are likely to be stronger in person.
3) People who find cryonics attractive are more likely to learn more about it and to seek out discussions of it. In a small group environment, people instead just comment on whatever is being discussed. So most LW types may be uninterested in cryonics, either because they find it facially implausible or immortality unappealing, even while most LW types who actively discuss it online find it plausible and appealing.
In regards to sample size, have people seen similar things at other meetups? (2) and (3) would make me expect yes.