Cars began to replace horses early 1900's. Whale oil was a major source for lighting in the 1700-1800 era. Pan-American Exposition , 1901, intoduced electricity's potential. Centuries, not years, not decades. Society, like HMS Titanic, has a rudder way too small to quickly change course...Centuries, not years, not decades... World population over 8,000,000,000... That ship ain't gonna miss the iceberg dead ahead... and their ain't enough lifeboats, either.