Media theorist Marshall McLuhan's devout Catholicism opened his eyes:
Belonging to a Church that gloried in cathedrals and stained glass windows made him responsive to the visual environment, and liberated him from the textual prison inhabited by most intellectuals of his era. The global reach and ancient lineage of the Church encouraged him to frame his theories as broadly as possible, to encompass the whole of human history and the fate of the planet. The Church had suffered a grievous blow in the Gutenberg era, with the rise of printed Bibles leading to the Protestant Reformation. This perhaps explains McLuhan’s interest in technology as a shaper of history. More deeply, the security he felt in the promise of redemption allowed him to look unflinchingly at trends others were too timid to notice.