a chicken and egg situation

a situation in which it is impossible to say which of two things existed first and which caused the other It's a chicken and egg situation - I don't know whether I was bad at the sciences because I wasn't interested in them or not interested in them and therefore not good at them.

Common Names:

Name	Pronounced	Usage
Trude	-	Norwegian
Miren	-	Basque
Heliodoro	e-lyo-DHO-ro (Spanish)	Spanish, Portuguese
Josh	JAHSH	English
Neva	-	English
Kayetan	KAH-ye-tahn	German