God had decided that humanity as a species is an overall disappointment. After wiping out all life with a flood, he decided to start from scratch. Humanity's new environment would be constantly changing, in order to create a species that is stronger, faster, and tougher.
The new earth would be a living biological organism that has direct control over the environment. The planet itself would be a tropical death world with a lush biosphere, but everything would be hostile and dangerous to humanity, as if the planet itself were trying to kill them.
I am using this planet as a template of what God wants:
All animals on the planet would act as predators who hunt species lower than them. They would be constantly adapting every generation to become omnivores that eat anything. Plants would also adopt to become more hostile. Some would be active carnivores, others would be poisonous. Every species would adapt, learn, and change rapidly, taking away the long term edge that humans have over the planet.
The point of this is to make it as difficult to survive as possible while not making it inhospitable. This is to force evolution to speed up its process instead of taking millions of years of trial and error. through this method, humanity will become tougher physically and mentally, eliminating weakness and becoming much smarter and cunning.
How can a strategy like this increase the pace of evolution in humans?