For decades, Aldrin believed the final decision was largely driven by the lunar module's hatch location.
fɔːɹ dˈɛkeɪdz, ˈɔːldɹɪn bᵻlˈiːvd ðə fˈaɪnəl dᵻsˈɪʒən wʌz lˈɑːɹdʒli dɹˈɪvən baɪ ðə lˈuːnɚ mˈɑːdʒuːlz hˈætʃ loʊkˈeɪʃən.