con shouldn't be used, especially today. see this Guy Steele article: Guy Steele on Parallel Programing: Get rid of cons! http://xahlee.info/comp/Guy_Steele_pa

con shouldn't be used, especially today. see this Guy Steele article: Guy Steele on Parallel Programing: Get rid of cons! http://xahlee.info/comp/Guy_Steele_parallel_computing.html http://xahlee.info/comp/Guy_Steele_parallel_computing.html “Get rid of cons!” is the exact words from his paper.