The question is, do we really need more bandwidth? What I see is that we're already swamped with the amount of information reaching our cell phones. Our attention is also a limited resource.

I think people often misunderstand how bandwidth (and generally any utilization) works. It's not about using 10% of the speed for some time, but using 100% of it for a fraction. You're practically always bottlenecked by transfer.

Major improvement is latency, which not only enhances existing application experience significantly, makes development easier by removing lots of concern, but it also enables completely new tech that has been stopped because of the latency profile of earlier tech.

What you're propably thinking of is the smallest use case like a webpage (which can still significantly be sped up) or a video. But have you though about loading several GiB sized app for just product demonstration purposes on the fly? The things fast connections enable can be hard to even imagine. You could have an entire VR/AR experience where-ever you are

Bandwidth or transfer the idea remains. We already have a very short attention span and we have many companies fighting for this finite resource.For example, we have companies that are using casino strategies in games for children.

Increasing the speed of the hardware can bring advances but it can also exacerbate the problems that we are already feeling with this hyperconnectivity.

Increasing the responsiveness of everything should have the exact opposite effect, because attention is most affected by latency. If you're always immediately getting what you're looking for immediately you can't be distracted either.

That's magical thinking. The gas will expand to fill the container. People will use it as much but download more.

Increasing attention available should be good regardless of how it would be used, even the worst-case scenario would be where we are now, only we get more done