Note: this batch of candidates is weak — most are hashtag-spam Shorts or channel intros with no substantive content. This is the least bad option.

The teaser promises a 230-year urban evolution arc: Miami's transformation from a tiny railroad outpost in 1896 — when Henry Flagler's Florida East Coast Railway first reached Biscayne Bay and the city was incorporated with just over 300 residents — into the global skyline it is today, then projected forward another century to 2126.

What makes Miami a genuinely interesting case study is the sheer number of forces compressed into one place: the 1926 hurricane that ended the first land boom, the postwar Cuban diaspora that reshaped its demographics and economy, the 1980s cocaine-fueled construction surge, and now its standing as the most climate-vulnerable major US city, with sea-level rise actively driving "climate gentrification" in higher-elevation neighborhoods like Little Haiti.

A documentary that genuinely engages with the 2126 projection has to grapple with whether parts of Miami Beach will still be habitable, how the porous limestone bedrock makes seawalls largely useless, and what managed retreat might look like for a metro of 6+ million. Whether this tiny channel delivers on that promise is the gamble, but the framing itself is the most substantive offering in this list.