Ever since the evolution of the sensory neuron, organisms have been using these amazing peepholes into existence to direct the course of their lives. Now, humankind has elevated the role of these senses, and even created technological extensions of them, in order to find order and true knowledge of this Universe in which we exist. We are all scientists looking at the world through our own tiny peepholes, attempting to find our place within it.

Some of these can naturally be considered sub-questions of others, while some may have sub-questions already included within them. As with most scientific knowledge, it is all interconnected. If you think of something that you feel should be added to this list, please leave a comment. I will gladly add it to this list if it is something even remotely answerable in theory. It can be in any field of science you wish.