<prompt> Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu: Kupfuura: Muchiverengero chavose, hapana muviri wenyama unogona kubata kana kuti kukunda kurova kwechiedza. Hapana pesvedzero kubva pachiitiko A inogona kusvika kune imwe nzvimbo X pamberi pechiedza chakatumirwa paA kuenda kuX. Somugumisiro, kuongororwa kwemitsetse yenyika yose yechiedza null geodesics kunopa ruzivo rwakakosha pamusoro pechimiro chepakati-nguva. Urongwa uhwu hunogona kuratidzwa uchishandisa Penrose Carter dhayagiramu umo nzvimbo dzakakura zvisingaverengeki uye nguva dzisingaverengeki dzakapfupikiswa dzakasimbiswa kuitira kuti dzikwane pamepu ine mugumo, nepo chiedza chichiri kufamba pamwe chete nemadhigoni sezvinongoita dhayagiramu dzenguva-nzvimbo. Achiziva kukosha kwechimiro chechikonzero, Roger Penrose nevamwe vakagadzira izvo zvinozivikanwa segadziriro yepasi rose. Muchimiro chenyika yose, chinhu chokudzidza hachisi chimwe chisarudzo kana mhuri yezvinogadziriswa kuEinsteins equations. Panzvimbo pezvo, ukama hunobata chokwadi nokuda kwezvose zve geodesics, zvakadai seRaychaudhuri equation, uye zvimwe zvisingazivikanwi zvinofungidzirwa pamusoro pechimiro chezvinhu kazhinji muchimiro chemamiriro esimba zvinoshandiswa kuwana migumisiro yakawanda. Mubvunzo: Chiedza chinofanira kubva kupi chichienda kupi?  <response>: A kusvika kuX 