Why you can't create a new element currently.
Oh, you want to make a new element? Let's get a lot of electrons.
Now get about an equal number of protons for these electrons.
Too many protons? Let's add some neutrons to keep them all together.
What's this? Too many neutrons? They don't like being in the same space? That is unfortunate, my dear.
What are you planning to do with that gravity-











