Just to get the facts straight: the event took place on Wed 8 Feb and the stock went down 7% on Wed 8 Feb.
I am saying this not to be pedantic, but to point out that the argument -- that HN sentiment is a good leading indicator of stock movement -- is not supported by the evidence tendered.
Apologies if I'm misunderstanding your argument.
https://www.androidpolice.com/how-to-watch-live-from-paris-g...
https://www.cnbc.com/2023/02/08/alphabet-shares-slip-followi...
(Also, I see you work at Google. I hope you don't take any of the heavy-handed criticism of your employer in this thread too personally. I'm sure you do great work! And if you've got anything to do with Bard, I'm looking forward to whatever improvements you have coming down the pipe.)
(And no, I don't work on Bard.)