First, let's define our terms. Maybe the yarn under the cover is wrapped more tightly than it should be. Maybe the ball's cork center is bigger. In theory, a juiced ball flies further than one that hasn't been fiddled with. That's good for hitters, and it's especially good for home-run hitters.
Juiced baseballs are one way to explain it.
But so is stronger hitters and smaller ballparks. So home runs are up. The fans love it. The same complaints were heard in 1961 when Roger Maris hit sixty-one home runs, and in 1927 when Ruth hit sixty. T here is no doubt at all in my mind that the old-time ballplayer was smarter than the modern ballplayer.