Sorry, it is not possible for Cuba to develop any sort of functioning in-house tech with a complete economic embargo. US also "pays" Cuba less than the cost of

Sorry, it is not possible for Cuba to develop any sort of functioning in-house tech with a complete economic embargo. US also "pays" Cuba less than the cost of a NY apartment for its "leased" huge naval base - Guantanamo - the price of which has never changed since the original agreement taken at gun-point.