Summary of “The Juiced Ball Is Back”

Although the latest spike’s origins are more murky, new data procured by The Ringer and presented below points back to the ball being involved again.
The strongest argument against the “Juiced ball” theory comes from MLB officials, who claim that the ball hasn’t changed.
There, the balls’ CORs were tested by firing them at 120 mph into a steel cylinder, six times each, which is considered the closest approximation of in-game collisions that wouldn’t destroy the ball.
The idea of elevating the ball isn’t new, but in the past year or two it seems to have made major headway in combating the common belief that it’s better to hit down on the ball.
The following year brought another rise in run-scoring, this time not just because the ball was replaced even more frequently, but because hitters looked around and realized that the new game deserved loftier goals than just putting the ball in play.
As Wright recounts, “The biggest factor in the big offensive leap in 1921 was traceable to a change in the approach of some hitters - they begin to shift from a general goal of hitting liners and hard grounders to driving more balls in the air.” Led by Babe Ruth, batters adapted to a bouncier, better-preserved, and lower-seamed ball and started swinging for the fences.
Yes, a Ken Rosenthal report from January 2015 revealed that MLB had brought up the idea of juicing the ball, and yes, it does seem somewhat suspicious that the ball began flying just when fans and officials were fretting about run-scoring falling to its lowest level in almost 40 years.
Just as my millennial mind explained how the dead ball came to life, 22nd-century fans might look back on the long-ball bonanza of the two-thousand-teens and believe that the baseball started it.

The orginal article.