Era Dropping

What would happen if we took some of the best from THEIR era's and dropped them in another era I believe some top level guys would become fringe contenders and some completely irrelevant guys would be banging on the Big Stage.Tyrell Biggs .......Drop him in today's heavyweight picture how's he do?Fritzie Zivic...... put him in today's loaded welterweight division how's that shake things upSugar Ray Robinson..... Drop him in the 70' 80's in his prime does he get beat or does he still become a GOAT?Klit Brothers put em in the late 70's 80's who does better are they world champs?Ernie Shavers...put him in today's heavyweight sceneEvery relevant heavyweight from early 1900's to the beginning of the Big heavyweight era( basically any heavy that never fought over 200lbs) drop em all. in today's cruiserweight scene..... what happens?just some stuff I've been thinking about after some other discussions it's crazy to think how much an Era effects a legacy