easy
you are a human alive today
medium
you are any human ever born
hard
you are any mammal alive today
extreme
you are any animal alive today
speculative
with simulated life, alien
life, and for all time
easy
you are a human alive today
medium
you are any human ever born
hard
you are any mammal alive today
extreme
you are any animal alive today
speculative
with simulated life, alien life, and for all time