What do YOU need to 'predict' eclipses?

What do YOU need to 'predict' eclipses?
I talked to Steve [professor of mathematics and statistics at a Portland state university] to confirm anyone can predict eclipses just from simple observations.
NO heliocentricity or Newtonion mechanics required.
Is he wrong globers?
😆😂

https://publish.obsidian.md/shanesql/Eclipses