Medicine

• COVID-19 antibodies have different lifetimes in different people. People aren’t guaranteed to be immune even if they get the vaccines.
• Article

• Q: How do they know “decades”? Are they using Bayesian methods to determine this?
• Q: Are antibodies measured in half-lives? Why not, if not?

Technology

• Fountain pen ink does not work on a Rocketbook Everlast/Core; even though the ink is water-based, the pigment is not. It becomes permanent when used on a Rocketbook.

Apple

• Apple’s Mac OS X and Newton MessagePad 2000 were released on the same date, but different years.

Programming

• SwiftFORTH has nothing to do with the Swift programming language.