What are you? While philosophically this varies, biologically, you are a series of chemical reactions. The mighty brain is the end goal of your body: facilitating the growth of new neural connections and firing along those synapses that already exist. This "connectome" essentially IS you. Your brain never stops growing as long as you continually explore new things, challenge yourself with varied ideas, and think abstractly about how and who you are. I hope you remember every day how intricately complex and mindbogglingly beautiful it is that you are alive.