All Scenarios
Browse all alternate history scenarios across different time periods and regions.
What If Serena Williams Never Played Tennis?
Exploring the alternate timeline where Serena Williams pursued a different career path, dramatically altering the landscape of professional tennis, women's sports, and cultural representation in athletics.
What If SETI Received a Signal?
Exploring the alternate timeline where the Search for Extraterrestrial Intelligence (SETI) detected an unambiguous signal from an alien civilization, fundamentally altering humanity's place in the cosmos and our technological, social, and philosophical development.
What If Sex Education Was Never Controversial?
Exploring the alternate timeline where sex education became a standard, uncontroversial part of school curricula across the United States and globally, transforming public health outcomes and social attitudes toward sexuality.
What If Shanghai Developed Differently After Opening Up?
Exploring the alternate timeline where Shanghai pursued a different development model after China's economic reforms, potentially reshaping China's economic rise and global influence.
What If Shanghai Preserved More of Its Historical Architecture?
Exploring the alternate timeline where Shanghai prioritized architectural preservation over rapid development, creating a dramatically different urban landscape that balances modernity with heritage.
What If Sheffield's Steel Industry Never Declined?
Exploring the alternate timeline where Sheffield maintained its position as a global steel powerhouse, transforming Britain's industrial landscape and preventing the economic devastation of the 1980s.