english: But if we did a little thought experiment -- as Einstein was very fond of doing -- we could imagine putting the Sun crushed down to six kilometers, and putting a tiny little Earth around it in orbit, maybe 30 kilometers outside of the black-hole sun.
non_english: ale ak by sme spravili malý myšlienkový experiment, aké rád robil aj Einstein, mohli by sme si predstaviť, že by sme mali Slnko stlačené na objekt s priemerom šiestich kilometrov a na jeho obežnú dráhu by sme umiestnili malú Zem, asi 30 km od Slnka v podobe čiernej diery.