> The number of transferred bytes is important because it affects the latency and hence the user experience. Using this estimate, we calculated that between Jun

> The number of transferred bytes is important because it affects the latency and hence the user experience. Using this estimate, we calculated that between June 1st and 28th, 2019, the average BPP (weighted by the number of bytes transmitted with that BPP) was 2.97, 2.24 and 2.03 for small, medium and large images, respectively. We confirmed that there was no considerable difference between mobile and desktop platforms. This data indicates that image compression algorithms should target rich images with a relatively high BPP values, aiming to produce 1 BPP images almost free of artefacts instead of 0.5 BPP images with artefacts that are not too intrusive. This is excellent, and does indeed suggest that JPEG XL should be broadly preferred in the browser. Thanks for the reference.