Welcome to The Nightcrawler — a weekly newsletter from Eric Markowitz covering tech, innovation, and long-term thinking.

As AI rapidly transforms our reality and reshapes engagement with information, Professor Yuval Noah Harari urges us to pause and critically consider the implications of coexisting with non-human intelligence, emphasizing the need for responsible leadership and safeguarding our humanity.

With the right material at the right temperature and a magnetic track, physics really does allow perpetual motion without energy loss.