In this episode Benny and Mal think how great it would be if humans were invincible to pain. But pain can help warn us of damage to our bodies so might we end up with more injuries?

What would it be like if we could choose our own height? Great if you’re in a crowd but perhaps there might be easier ways to stand tall – without surgery or medicine!

In this episode Benny and Mal think about all the ways life would be easier if we had super speedy legs – no need for cars! But what if the technology went wrong?