Trivia: Rain Robinson has a model of a DY-100 on the window sill in her office. In 1996 (also the year this episode is set), Kahn left Earth in the SS Botany Bay, a DY-100 class starship.
Trivia: King Abdullah of Jordan appears in this episode (he was Crown Prince at the time), as a Voyager crewmember in a corridor scene. He is uncredited.
Trivia: Robert Picardo plays the Voyager's Holographic Doctor. Picardo played the same role in Star Trek: First Contact.
Trivia: Tom Paris was originally written to be Nick Locarno, the cadet Robert Duncan McNeil played in the 'Next Generation' episode "The First Duty." Because the character was the intellectual property of that episode's writers, royalty fees would have had to been paid for every new episode in which Locarno appeared. To avoid the unnecessary expense, the 'Voyager' producers instead created a new character, using Locarno as a building block.
Inside Man - S7-E6
Trivia: When the Doctor invites the holographic Reg to play golf, he mentions a few locations to choose from. One of them is situated on Giedi Prime - known to "Dune" fans as the Harkonnen home planet.
Trivia: The acronym for the Doctor's new "Autonomous Self-Sustaining HOLo-Emitter" makes for quite an interesting choice of words.
Trivia: The poem the Doctor reads at the end is "La Vita Nuova" (The New Life) by Dante. Although it's a modified version as the intro is more of a paraphrase than an English translation.
Trivia: Although they play mother and daughter in this episode, Karen Austin is only three years older than Roxann Dawson.
Answer: If you include the original Star Trek series (1966) then there are several. The communicators used in the original series were before (and said to inspire) mobile phones. We currently do have teleportation technology but it currently only works on things the size of a few molecules. A "Cloaking device" also exists; it's a fabric that bends light through it, though it currently only works in infra-red. The Hypospray is real and was patented in 1960 - six years before the original series aired - it's actually called the Jet Injector. Faster Than Light travel is still a few decades off, but there are several real-world theories that look promising, including one that is remarkably similar to the method used in the Star Trek Universe called the Alcubeierre Drive that involves manipulating spacetime ahead and behind the ship and the ship "riding" it. Medical techniques and technologies have also advanced considerably; prosthetics particularity and we routinely have robots performing surgeries where absolute precision is needed. The "Shield" used in the series have a few primitive versions around. The Phasers used in the series are used but are not very powerful (nor will they ever be as powerful as the Star Trek version the laws of physics gets in the way) but rail-guns (using magnets to spin then propel a projectile) and particle accelerators like the Large Hadron Collider have been around for a while. The Replicator would require a nuclear fusion reactor and a nuclear fission reactor in something the size of a large oven and the Holo-deck wouldn't work at all based on our current understanding of physics so those are both still science fiction at the moment, but who knows!
Sanguis