Thanks for your reply! I'm still wondering how this number was arrived at and why scientists don't now call this number absolute zero instead of −273.15 °C / O°K.
I recently submitted the following question to Dr. Michio Kaku on his Facebook page regarding an unfamiliar concept in his book "Parallel Universes":
Dr. Kaku,
In your book "Parallel Universes", pg. 301, you mention something called the Gibbons-Hawking temperature, a theoretical low...