Though I don't know what idea he was referring to, tides can be pretty hard to predict accurately. Obviously nothing to do with God, but it's probably fair to say there are aspects of them we don't understand or at least can't simulate arbitrarily far into the future.
"In an analysis of the tides in Venice Lagoon, at the head of the Adriatic Sea, where the tides seem to pick up because of near-resonancy of the basin, Vittori (1992) observed that consecutive tidal maxima are highly irregular. She argued this to be indicative of low-dimensional chaos. Whether the low-order dynamics to which this is due is either inherited from the dynamics of the local wind fields or of a genuinely oceanographic nature is not clear." [1]
This was the video in question: https://m.youtube.com/watch?v=HABNe7_D22k?t=1m52s. It's not about predicting the exact movement of tides, he's arguing science fundamentally can't explain the regularity of tides...
Funny though, the guy he's interviewing said Islam is a scam and Muslims are suckers who have fallen for it. Funny what you can get away with if you couch it right.
To be fair, he claims that ALL religions are a scam, not specifically Islam. I can tell you for sure that Bill O'Reilly wasn't grilling him for his bad treatment of Muslims!
