More from Yuval Noah Harari’s Sapiens:
“In 1620 Francis Bacon published a scientific manifesto titled The New Instrument. In it he argued that ‘knowledge is power’. The real test of ‘knowledge’ is not whether it is true, but whether it empowers us. Scientists usually assume that no theory is 100 percent correct. Consequently, truth is a poor test for knowledge. The real test is utility. A theory that enables us to do new things constitutes knowledge.
Useful knowledge is power, the details are superfluous.