An interesting (and timely) data crunching post over at Empirical SCOTUS focuses on Justice tenure (here). As the post notes, with an eye towards assessing President Trump's potential to influence the Court's future through appointments: "If we look over time to all Justices confirmed to the Court or elevated from Associate to Chief Justice, we see that the average time between appointments has increased only minimally to around two years (the Justices are listed sequentially in the order in which they were nominated/elevated and the minimum of zero years is when two Justices were confirmed within the same year)." Notably, the "time between nominations" trend remains essentially flat despite the concurrent emergence two related trends. First, the average age at nomination has "declined about five years on average since the beginning of the 20th century." Second, Justices last on the Court "for more years and until they are older."