Side question, I believe, there was some startup in the early 2000 or maybe in the dotcom bubble era, they were selling "brain-enhancing tools" which were akin

Side question, I believe, there was some startup in the early 2000 or maybe in the dotcom bubble era, they were selling "brain-enhancing tools" which were akin to MS Clippy Office Assitant + marketing sauce on top. And iirc they got to an insane market cap and then it all popped. Could anyone remind of the name?