Urknall literally translates to "Big Bang". It's a fascinating and powerful word that evokes images of the creation of the universe.
In the song, Adel Tawil uses it to describe an epic journey: "Wir rasen im ganz großen Wagen / Über die Milchstraße am Urknall vorbei" (We race in a very big car / Across the Milky Way past the Big Bang). This word adds a cosmic and grand scale to the song's themes of adventure and connection, making it truly memorable.
Adel Tawil built this whole song out of opposites that somehow fit. One of you builds a house, the other just wants to go hiking. "Du setzt weiße Tauben auf meine Panzer" (you put white doves on my tank) sums up the whole idea in one line: two completely different instincts, aimed at the same person. The chorus keeps circling back to that point without ever getting cute about it: "Du bist wie ich, nur so schön anders" (you are like me, just so beautifully different).
By the bridge the contrasts get bigger. One of you dreams of Sylt, a quiet German island; the other wants to go all the way to Sri Lanka. "Vor deinen Freiheitskämpfern steh' ich da wie ein Beamter" (in front of your freedom fighters, I stand there like an official) is Tawil poking fun at himself, the cautious one next to someone braver. Then the song stops being about two people at all and blasts off: "Wir rasen im ganz großen Wagen, über die Milchstraße am Urknall vorbei" (we race in a big car, past the Big Bang on the Milky Way). It's a love song that admits the two of you don't match, and argues that's exactly the point.