Historian Yuval Noah Harari wrote a book back in 2015 that looked at the entirety of human history; from hunter-gatherers to space exploration. Sapiens: A Brief History of Humankind packs all of this into a mere 400 pages. Harari noted to NPR's Arun Rath that humans have done a great job cultivating power – but where we tend to fall short is translating that power into happiness.