What you have written is an interesting mind experiment, but it only comes from human limitation and poor translations.

Nothing is not this boring thing.
Nothing is not empty.

The experience in a deprivation tank does not stem from "being forced to create".
For people who meditate often, a deprivation tank does nothing. Nothing more than them sitting in lotus or laying on a mat.
There is a lot of reality that we do not normally interact with. So, when you take away all the "worldly" stimulus, you can start to notice all the other things going on.
It is like living in a city all your life, and then one day being out in the country and seeing the stars.

God does such things out of excitement and exploring.
Yes, we are all part of God. And when we wake from this dream that is human reality, we recognize that we are a part of God.
There is no, out of boredom or emptiness. Those emotions are almost non-existent.
When you start really getting into "Creating" you find that the lower the level of emotion, the worse things come out. Soooo, when you are creating, using only the highest vibrations is a must.