As coastal Floridians face rising seas, they may repeat the past — 2,000 years past. The current forecasts are for the Atlantic and Gulf to wash over Florida’s shores more rapidly, and with far more people enjoying ocean views from their homes, than during earlier periods of sea level rise. Still, ancient Floridians had to change their lives because of sea level rise — they moved inland, but not much. Predictions on the modern displacement forced by sea level rise vary from a trickle to a full-on exodus. Other experts say it’s far too early to tell.