MAPT and Alzheimer disease: Similar to our findings in mice, we did not identify specific TE transcripts that drive brain aging and Alzheimer's disease, and we note that the tau/disease‐related TEs identified in different studies generally are not the same from one study to the next (Guo et al., 2018; Sun et al., 2018), consistent with the idea that non‐specific chromatin dysregulation may underlie these effects.