Technology

The Segway was sold at the time as a "revolution in transportation". Ditto for the Hyperloop, by the way.

Then there's the Theranos' "revolutionary" Tech as mentioned in the article.

And don't get me started on how Pets.com (which famously went bust in the .Net Crash) was also revolutionary.

There are way more situations of Tech snakeoil being peddled to the masses as "revolutionary" than there are of trully revolutionary Tech being sold as such (I can only think of 3 trully revolutionary Technologies in the last half a century: the Personal Computer, the Internet and Smartphones, and one of those was a surprise revolution whilst another was only hyped after it was actually starting to show revolutionary results, and only smartphones were hyped from the start), so the logical default position for anybody but the snakeoil salesmen trying to swindle the masses is to suspect of tall tales in Tech, the taller the tale the greater the suspicion.

(I keenly remember the early days of the Internet, and it was incredibly low-key compared to the present day hype-spectables for bullshit that never even works).

Believing such claims by default is either incredibly naive or the product of a vested financial interest in getting people to put money into it.