Future inventions I do and don't want

Hello flat screen readers, Actually there are inventions I do not want to exist here's my list.
Worst science fiction gadgets
1. Hot Plasma Lightsaber.
The lightsaber is a failure has been and will be until the end of the world, besides you would burn your hand, body and face up and worse yet it can melt the handle, besides it would bring down buildings and burn people to death, no way do I want it bullet guns and fire bombs are horrible enough in crime and war.
2. Time traveling to mess up history
Also as for the time machine car you wouldn't be able to go into the past or future at will and speeding up to 88 MPH will not take you forward or back in time. You will only go 1 second into the future because that's how God set up time. Even if it worked you would end up in outer space. Besides I wouldn't want to go in the past and especially not the 19th century because they had a hard life with no electricity, TVs, computers, no wheel cars, blaze they didn't have clean food and water and had to ride horses or walk. But I would like to be able to view the past (But I would not want to live in it or mess it up.)
3. Teleporting your physical body instantly
I do not think that you can tear apart your body and put it together in another place because first of all you would die in the process and having a clone body wouldn't do you any good because you would be dead. My advice is don't teleport your physical body in the first place. If you want to get to places just walk or drive a wheel car, or fly a winged airplane or a flying car.
4. Using dangerous Mr Fusion for fuel
I don't think it could be made it in the market place because the oil companies would suppress you and take your compact Fusion away. Besides you would get radiation and might get cancer in your body.
Now here's a list of things I do want exist here's my list.
Best science fiction gadgets
1. Hoverboards and hovercars for transportation
The hoverboard has been in Treasure Planet and it's the best Disney movie ever as well as Meet the Robinsons. It low hovers over almost all terrain. Also hovercars would be great considering you go off road.
2. Flying car for transportation
The flying car has been featured in Disney Flubber movies, Meet the Robinsons, Lilo and Stitch, Treasure Planet. And Pinocchio 3000. While it would be convenient to fly to places, you would have to be very careful you don't fall down and crash, and you wouldn't want terrorist to use them as missiles.
3. 3-D hologram Movies, video games, TV and Internet fun
The 3-D hologram would let you see real 3-D shows without 3-D glasses. Hopefully it finally comes.
4. Fast moving robots.
Robots would be useful in making movies and TV shows without real people actors because they would never get bored and it would make Puppets come to life without strings and move claymation and toy characters and you don't need to take frame pictures anymore. (But I don't want robots to have their good and bad thoughts)
Well that's some of the stuff I want and don't ever want thanks for reading my blog article.

This is the 3-D hologram I prefer the most

Hello there flat screeners today I want to tell you what 3-D hologram projector. I want the 3-D hologram projector to be able to show 3-D images popping out of the screen in midair. Here's my
vision for a true 3-D hologram.

Remember no 3-D glasses period and no containing it inside the flat screen.