Before Lost , network TV feared long arcs. Shows like CSI or Law & Order thrived on "villain of the week." Lost proved that audiences would commit to a 121-episode mythology filled with time travel, faith vs. science, and deeply philosophical questions about destiny.

: A source of "electromagnetism" and "light" that serves as the foundation for the island's supernatural powers. Legacy and Impact

Explained. The Dharma Initiative brought them to the island to test the effects of electromagnetic energy, training them to turn a frozen wheel that would move the island through space. That’s also how the bear ended up in Tunisia.