Are there amplifiers (repeaters) from MC to RL?

Are there any repeaters (repeaters) from Minecraft in Real Life?

to (power) power cables? I know it's kind of stupid xD.

Of course there are repeaters?

Never heard of a Wi-Fi repeater?

They are also available for cables. If you have very long cable lines, you usually need a repeater every few kilometers. I think at fiber optic a repeater is installed at least every 70km or so.

OK thanks