Long story short:

• Keynes wrote a fairy tale about inflation raising wages and shortening the work week
• Richard Nixon started inflation as we know it
• Economists worldwide fell into line
• Shockingly, wages didn't go up, the work week didn't shorten, and we now have record-breaking inequality (due to the Cantillon effect).

To this day, people who paid to "learn" the fairy tale insist that inflation is good.