It's not people that need convincing.
It's video cameras filming riseballs in profile that aren't convinced. It's the computer software used to track the flight trajectory of the ball that isn't convinced. It's gravity that isn't convinced. It's the study that shows a ball spinning beyond the the limits of human capability and still not "hopping" above it's original trajectory, that isn't convinced.
Well said.
And I would add that of the list presented, PEOPLE are the only example that can actually be tricked by illusion. This possibility HAS to at least be CONSIDERED, or so you would think.
And yet SOME PEOPLE continue to state / believe that it is the video and physics which are "tricks," and that their eyes - viewing from a SINGLE one of the many available angles - have it right.
And not only that, they disparage others who choose to present the evidence. Not REFUTING the evidence - how could they - but simply inferring anyone who believes it is a moron.
It's why I love PEOPLE. We're an amazing bunch.
As for the point that it is a "riseball" because it crosses the plate at a greater elevation from the ground than when released, yeah, THAT'S what people mean when they describe a riseball hopping over a bat or climbing up the strike zone.