From Wikipedia: Pacquiao completed his elementary education at Saavedra Saway Elementary School in General Santos City, but dropped out of high school due to extreme poverty.[23] He left his home at age 14 because his mother, who had six children, was not making enough money to support her family.[23] In February 2007 he took, and passed, a high school equivalency exam, making him eligible for college education.[24] He was awarded with a high school diploma by the Department of Education. Pacquiao enrolled for a college degree in business management at Notre Dame of Dadiangas University (NDDU) in his aforementioned hometown of General Santos City. On February 18, 2009, Pacquiao was conferred the Honorary Degree of Doctor of Humanities (Honoris Causa) by Southwestern University (SWU) at the Waterfront Cebu City Hotel & Casino in Lahug, Cebu City in recognition of his boxing achievements and humanitarian work.[25] In preparation for his career as a lawmaker in the House of Representatives, Pacquiao enrolled in the Certificate Course in Development, Legislation and Governance at the Development Academy of the Philippines – Graduate School of Public and Development Management (DAP-GSPDM).[26] Most likely he doesn't have a legitimate college degree, but he's still 50X more educated than Floyd with the schooling and certificate training that he does have. Floyd wouldn't pass the GED and I'd bet money on that.
In MMA Francis Ngannou walked through several Stipe Miocic bombs, while gassed. Ngannou seems to have a large cranium.
Dunno about this theory. Amir Khan is really big headed and his chin is made from heated marshmallow....
Yes, I know... lol. I meant it figuratively not literally. Incongruous juxtaposition and all that....
I do appreciate the attempt to find the science behind Glassjawitus. I have sometimes thought maybe it's to do with the size (more the width, actually) of jaws, and that would fit in with the big head theory. Would a wide jaw line absorb the blow better than a pointy thin jaw? It's possible....
Perhaps Wide Jaw Theory is true, however the benefit is negated by being a bigger and therefore easier target to hit.