Go ahead and blame the Timberwolves for this one.
Their draft-night trade with Chicago for three-time All-Star Jimmy Butler was the first thunderbolt transaction from which everything else tumbled in a dizzying summer when eight All-Stars switched teams and the NBA's balance of power largely continued to shift from East to West.
Butler, Paul George, Carmelo Anthony and Paul Millsap all went west. Chris Paul, Kyrie Irving and Isaiah Thomas stayed in the same conference. Gordon Hayward was the only one to buck the trend, moving from Utah as a free agent to Boston in the East.
"That's crazy," Timberwolves 18-year veteran Jamal Crawford said. "It's an interesting time. I thought the West was tough when I came over [to the L.A. Clippers] five, six years ago. It's, like, unbelievable right now."
The irony is that a summer of such stimulation and intrigue preceded a regular season in which crowning Golden State as champion once again appears a foregone conclusion.
Turner Sports NBA analyst Reggie Miller calls Kevin Durant, Stephen Curry and the Warriors a "super-mega team" unto itself.
"If they stay healthy, I hate to say it's not close," Miller said. "It really isn't even close. It's not even close, people."
But the chase to keep up made much of the summer as eventful as an NBA regular season, another of which starts with two games Tuesday night. Included is Irving's Celtics debut against his former team, the Cavaliers.