Mostly the newer ones try to improve the older ones. I guess at some later point one will dominate and the others will go sleep mode. Just like in the movie Hi

Mostly the newer ones try to improve the older ones. I guess at some later point one will dominate and the others will go sleep mode. Just like in the movie Highlander - there can only be one. (I couldn't name offhand which JIT is the main one right now ... I always think it is from Takashi Kokubun but that may now be outdated. MJIT YJIT ZJIT HUJIT WAJIT WTFJIT GRANDMAJIT - too many JITs.)