how to slow down a video (and its audio) by 1.25x

$ brew install ffmpeg

$ ffmpeg -i input.mp4 -filter_complex "[0:v]setpts=1.25*PTS[v];[0:a]atempo=0.8[a]" -map "[v]" -map "[a]" output.mp4

L2 regularization

Given the randomness in the data set, it is impossible to predict which regularization rate produced the best results for you. For us, a regularization rate of either 0.3 or 1 generally produced the lowest Test loss.

https://developers.google.com/machine-learning/crash-course/regularization-for-simplicity/playground-exercise-examining-l2-regularization