You could turn invisibility on and off as you like and there would be no time limit. Your clothes would turn invisible too, and you could decide whether the items you are holding would be visible or not.
There would be no limits on how many times or where you could teleport. The items you hold while teleporting would be teleported too. You would also have the ability to know if the place would be safe to teleport to, so you wouldn’t teleport and get impaled by an icicle or teleport inside a wall and get your insides filled with concrete or something.
Personally, I don’t know which one would I pick. Invisibility would be awesome for pranks and stuff, but teleportation probably would be more useful for everyday life.
How could teleportation solve the energy crisis? I’m too lazy to think myself so pls elaborate.
In addition to what the other commenter said: from the description of OP, the teleportation is basically “magic”, ergo free potential energy (by moving objects from one place to another).
Create a large magnet in a generator that’s very tall, free transport the magnet up to the top, let it fall slowly creating electricity. It’s basically how hydro works: the sun “transports” water, in the form of clouds, to a higher point, gravity pulls it down, we use that to make energy.
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Sure, if you choose to change the parameters from what OP said, it might change the outcome.
That said, the other guy already answered you. It would become less efficient if you only had your body weight, but it still a solve of unlimited (though small volume) energy.
Scratch costs with transportation. No need for any means of transportation.
Also a lot more free time. No commuting, no early leave to get somewhere on time. Just blink and you’re there.