If you live a few degrees below the Equator, and you can See Polaris, well then you've just debunked an Astrophysicist!
Shout out and call out to all the Flat Earthers and Globe-heads living near or around 2 Degrees South Latitude. That means you Ecuador, Brazil, Tanzania, and Indonesia (Jayapura)! Indonesia you may be the best bet as you Google "Flat Earth" more than any other country in the world. Simply go outside and see if you can find Polaris, check your Latitude on your smart phone, if you are below 1.5 Degrees South Latitude and you can observe Polaris, then you just debunked an Astrophysicist!