When Voyager was first broadcast, we didn't yet have the Fediverse... we had Usenet. I saved a little sample reaction to "Threshold".
From: [email protected] (Carlos May)
Newsgroups: alt.tv.startrek.voyager,alt.slack,alt.fan.tito,alt.sex.extraterrestrial
Subject: Re: Is Star Trek Voyager a comedy??
Organization: Planet Of The Frogs [email protected] wrote:
[snip...]
The most recent Flash movie was inspired by this episode. Flash ran backwards so fast he went back in time much like Paris going so fast he de-evolved.
This episode reminds me a bit of the movie Altered States, where drugs and sensory deprivation cause Williams Hurt's character to devolve into an early primate-hominid, but then turning into an "energy being" of some sort.