Doh ... I wasn't thinking of NFC, sorry. I've never done an NFC payment in bitcoin.

But using my mobile phone Camera to pay an LN invoice obtained by QR Code -- I do daily. No physical contact.

Contactless bitcoin payments don't need such protections.

PPP-adjusted GDP answers “how much stuff can someone in a country buy at that country's prices".

Just because someone in India pays the equivalent of $1 for medicine that you pay $25 for, doesn't mean their medicine purchase "essentially" caused $25 worth of economic activity to occur. I'm oversimplifying it but people misuse the PPP-adjusted GPD metrics in this manner.

PPP is a garbage metric

There's a great article that references this study:

The case of the disappearing secretary
#1449604

Computerisation turned everyone into an accidental secretary. AI will turn everyone into an accidental manager.

.

The following study was referenced in the substack article:

AI Doesn’t Reduce Work—It Intensifies It
#1430604

Paywall-free Archive of the article

See also:

• Finance Monitor (#1440880) -- the Finance-specific variant of World Monitor
• Tech Monitor (#1440871) -- the Tech-specific variant of World Monitor

Under the Related while posting was this great read:

The case against the F-35 | Mises #941799

Also see: Part 1 of 5 - The Sordid Story of Trump, the Trump–Witkoff Family Business, and the UAE: #1429645

Also see: Part 2 of 5 - The Corrupt Pardon at the Center of Trump’s UAE Windfall: #1429651