For an “image editor”, yes, absolutely would use more bandwidth than a client app, but that example is more to showoff the minimal diffs we apply on both client and server. The autocomplete search example is a much better real-world comparison when discussing bandwidth:
https://i.imgur.com/WWAHTR3.gif
In this case, the LiveView diffs match the best, most optimized server JSON you could write by hand, and you get that for free with zero effort. For some use cases we will use more bandwidth , like real-time form validations, but there are others where we can match, or potentially beat, a SPA bandwidth wise.
