In the Seventies, Encinitas used to have huge fields of flowers. I’m sure most, if not all, of them have been replaced with subdivisions filled with mini-mansions on micro-sized plots of land. Since I moved away from San Diego in 1978, they’ve added intercity rail connections to both LA/Orange County and San Diego.
Before Legoland, Carlsbad used to be just the town next to the gigantic US Marine Corp's Camp Pendleton. Pendleton is the only reason why there won’t be continuous urban development from Tijuana (south of the Mexican border) all the way past Santa Barbara along the Pacific Coast. Southern California urban sprawl already reaches north of the mountains in the Transverse Range into the San Joaquin Valley and eastward deep into Riverside and San Bernardino Counties.