This guy complains about a one-fifth-of-one-percent difference with one-minute precision. Bitcoin prices on one exchange frequency change by more than this in

This guy complains about a one-fifth-of-one-percent difference with one-minute precision. Bitcoin prices on one exchange frequency change by more than this in any given minute, so what part of 6:44 PM is he talking about? Also, there is no "market price" with a 0.2% precision when prices on various high-volume exchanges vary 10x this amount at any given moment. https://imgur.com/a/7gFaI https://imgur.com/a/7gFaI