Finding out what the baby universe may have been up to

In this talk we will learn in simple terms what we know and what we don’t know of our universe. We will see that like human beings, the universe started as a baby and grew up to the adult universe we see today. We will discover that most of the baby and toddler phases are currently unexplored by observations. However, if the baby and toddler universe were very loud, we will be able to hear their gravitational waves in the next couple of decades. Join me in this interesting adventure!