Telepathy
Wouldn’t the power of telepathy be so great? You wouldn’t even have to use your mouth to speak to others; you’d just think it instead! Imagine if we could use this technology to talk to animals – how incredible would that be? However, there are some problems that it could cause.
Mainly, you’d never be able to keep things secret again! It’s also likely that it would be pretty taxing on our brains and bodies, meaning that we’d need to eat a lot more and far more frequently. Additionally, we’d also need to sleep to get back any valuable energy we’d lost from telepathically communicating.