You will know that the early Universe was extremely dense and that changes happened rapidly. You will know that the Planck time is the earliest era we can probe. You will know that at the Planck time ...You will know that the early Universe was extremely dense and that changes happened rapidly. You will know that the Planck time is the earliest era we can probe. You will know that at the Planck time all four forces are thought to be unified. You will know that all of space and time were created in the beginning.