For roughly 1,903 Bitcoin at today’s conversion rate, Ivanka Trump, Spanish crooner Julio Iglesias, billionaire investor Carl Icahn, and dozens of other A-listers and titans of industry could soon become your neighbors in Miami’s most coveted address. Locally known as “Billionaire Bunker”, Indian Creek Island on Biscayne Bay on the backside of Miami Beach is by almost every measure the most exclusive, secure, and celebrity-saturated residential enclave in America (sorry Hamptons and Palo Alto).