For every one billion particles of antimatter there were one billion and one particles of matter. And when the mutual annihilation was complete, one billionth remained - and that's our present universe.
If an alien lands on your front lawn and extends an appendage as a gesture of greeting, before you get friendly, toss it an eightball. If the appendage explodes, then the alien was probably made of antimatter. If not, then you can proceed to take it to your leader.
I want you," he muttered. "Get rid of him and take me. The only risk is losing someone you don't have anyway. He's not what you need, Ella. I am" "Unbelievable," I said in disgust. "What's unbelievable?" "Your ego. It's surrounded by its own cloud of antimatter. You're a black hole of...of hubris!