The Jetsons/The Flintstones

Are the Flinstones us thousands of years in the future? This theory had its beginnings in the 1987 television crossover special, The Jetsons Meet the Flintstones. In the special, Elroy built a time machine that was supposed to send him and his family into the 25th century. The machine malfunctioned, and they ended up going to Bedrock instead. What this theory suggests, however, is what if the machine actually took them to the 25th century, and what if the Flintstones is actually set in a post-ap