Replicators

"Star Trek replicators"

-sadh*ndjob

"Yep. Any consumable item, at any temperature, perfect everytime."

-Fickle-dill-pickle

"Yes. I want nachos. With cheese, and beef, and beans, and salsa, and tomatoes, and sour cream, and olives."

"I live in Japan, obtaining some of those items is nearly impossible. I weep. Even Taco Bell nachos bel grande would be welcome at this point."

-ClancyHabbard

Infectious Luck

"The positive viruses from Red Dwarf - sexual magnetism virus and luck virus"

-Item_Successful

Capsule Corp To The Rescue

"Capsules from Dragonball. We would save so much area just from parked cars alone."

-pvtskittels

"A portable house and car sound amazing"

-Zorro5040

​Instantaneous Travel

"Teleportation; whether we're talking Star Trek, Dr Who, etc. Flying/driving needs to become a leisure activity"

-MrBlusie

"But most forms of teleportation would just bring up The Ship of Theseus Paradox since most forms of teleportation breaks the user down and reconstructs them elsewhere. Are we truly the same person or were we just killed and a clone was placed to replace us?

-ForgottenForce

You Could Be Anything

"The Omnitrix. The fact that you can use this device with millions of alien samples and walk around in their shoes and use their unique traits is pretty cool. Plus you could become a superhero...or a supervillain, whichever you choose lol"

-WrathfulBroly

"All good fun till you turn into something that can't survive in Earth's atmosphere and implodes from the pressure difference."

-Northerleyfire

"Hopefully there would be some form of safeguard to prevent that... But that would depend on the device working correctly, and a competent user... 🤪"

-4rd_Prefect

Really Fast Travel

"Surprised not to see literally any of the multiple forms of FTL tech yet. Warp drive, slipstream, slipSPACE, wormhole tech, stargates…"

-Sawsamurai

"Right. All of the other things are mere convenience. If we can figure out FTL, we can literally control the galaxy."

"Problem is, it's probably not possible. That makes me sad."

-heuristic_al

Instant Big Mac

"This is a silly one... I always wished the microwave thingy from Spy Kids was real. The one where, it looked like a candy bar before putting it in there and then BOOM Big Mac?"

"That's honestly something I think was always pretty cool."

-Storm137

New-Old Tech

"Mine would have to be a particular in Isaac Asimov's Foundation series. Basically, it's a voice-to-text-typewriter. The character misspeaks while dictating to the device and so she has to throw out the paper and start again. I love how the idea of a word processor just didn't come to him. It shows how there's so many innovations that couldn't be easily predicted."

-SmartAlec105

"Like Dick, who imagines robot teachers or super computers that run the world but they all run on tape."

-RavioliGale

It Sonics Things

"The sonic screwdriver"

-SavageCabbageGG

Just So Useful

"A Star Trek's tricorder. A portable device which can tell me what something is or wha's wrong with someone? So good."

-Megidra989

Some of these are certainly fantastical and seemingly impossible, but an iPhone would seem completely absurd to someone from 100 years ago. Anything is possible.