Sean Carroll in Preposterous Universe:
The idea of an “interest rate” might seem mundane and practical, in comparison to our usual topics around here, but there is a profound philosophical idea lurking in the background: if you lend me money now against the promise of me paying you back more in the future, I am relating the different values that a certain sum has to me at different moments in time. Traditionally, the interest rates set by the government have been a major tool for influencing the economy, but in recent decades they have increasingly fallen near zero. John Quiggin relates this change to the shift from manufacturing to an information economy, and we talk about what that means for the public interest in having information be reliable and widely available. And yes, there is a bit about crypto.