Well, it's not exactly a fair comparison, since they're comparing a volume number with GDP, which is total value produced in a year. Volume numbers are usually much bigger than production numbers, since money moves around a lot.

If I pay a restaurant $200 for dinner and my three friends each venmo me $50 for their share, then the exchanged volume was $350, but only $200 worth of value was generated.

For comparison, Visa's stated FY 2025 (ended Sep 30, 2025) payments volume was $14.2T.

rough math, but:

$14.2T / $1.9T * 1.6% = 12% global GDP

this number is a little misleading, to put it mildly.

Why will a number blow your mind? Have you thought about how Universe exists from nothing?