Premise:
"Nowadays, the majority of the haunts where the Lost Generation found itself have been polished and painted, or even entirely rebuilt, but people still pay elevated prices for the privilege of sitting in a seat that might once have been warmed by Modigliani, Lenin, or Sartre."
Hypothesis: No-one nowadays want to sit where Modigliani, Lenin, or Sartre sat.

no

Premise:
"Additionally, thanks to the built-in mini-engines, the toy could negotiate obstacles - depending on the boots - either by crawling, jumping, walking sideways, pirouetting, or in the down-up fashion."
Hypothesis: The toy could move around.

yes

Premise:
"well that will be neat"
Hypothesis: That situation didn't pan out very well.
no