YOU SAID:

Oh I just figured out that it keeps going until it winds up back at the beginining

INTO JAPANESE

ああ、私はちょうどそれが最初に戻るまで続くことを理解しました

BACK INTO ENGLISH

Oh, I just understood that it would last until returning to the beginning

INTO JAPANESE

ああ、最初に戻るまで続くとわかった

BACK INTO ENGLISH

Oh, I knew it would last until I returned

INTO JAPANESE

ああ、帰るまで続くとわかっていた

BACK INTO ENGLISH

Oh, I knew it would last until I returned