i would actually start with 'gravity' itself and that whether we fully understand it or not we can presumably all agree that such exists...
from there i would prolly skip to the human law of 3's (if you will)
3 minutes with no air and your in trouble...
3 days with no water and your in trouble...
3 weeks without food and your in trouble...
and im guessing we can mostly all agree on that...
then i might prematurely skip to this poll:
https://www.rollitup.org/politics/773992-your-personal-view-possessing-seeds.html
and suggest that we maybe need to look in that direction next etc...