Multiple 4K streams become possible. E.g. when the whole family comes over for the holiday we can all ignore eachother in favor of 4K video streams (which have better resolution, color, and cinematography than the real world ;) )

There aren't many (any?) services that are offering Bluray quality 4K HDR streams but even those are only 140 mbps. I would think 1 gigabit down should cover most families handily, especially when you consider most streaming services are more like 20 mbps max.

The main argument I see is "if you build it they will come" i.e. we won't see higher bitrates until connections like these are more common, but for now gigabit has even fairly extreme use cases for video streaming pretty well covered.

why stream on demand if we have the bandwidth to just send the whole video in the first 100ms? this might actually save power; instead of back & forth back & forth with the service, we can transmitnthe whole thing & be done, the server can now go serve other people.

> why stream on demand if we have the bandwidth to just send the whole video in the first 100ms?

Probably the best argument would be that many/most? people don't watch the whole video.

I can't find it right now but I remember reading a paper by Cerf? (I'm not great with names) that detailed such a concept. If I remember it I will edit and post a link.

Because then you have to cache the whole thing to disk, probably SSD, and increase the wear rate there unnecessarily...

SSD wear rate is not a concern

No it isnt. A lot of movies have vbr, and at scenes where a lot is going on, bandwidth can go up to 150mbps.

Well you could build up a buffer during the less intensive parts right?