add an entire paragraph on artifical heart
rewrite
remove the part that doesn't make sense
rewrite to joules per second
add reference link
remove clutter
change markup
change ## to ---
add a new link
add three items
add a new section
add a new link
write about the implication of the artifical heart's energy efficiency
add a paragraph about how much energy does the brain consume
add a new link
add a new section
add mathjax
expand on the project idea
add a sentence about learning how to do survival analysis
add details on what I mean by Reverse dependencies