[Mnet-devel] another paper

[zooko at zooko.com]

 Jim Dixon wrote:
>
> 1.1  increasing (OK - the more of your own data sent the better)
> 1.2  strictly concave
> 1.3  Un(0) = 0 (no data transmitted, no happiness)
> 1.4  continuously differentiable
> 1.5  the first derivative Un'(Cn) = 0
...
> Properties 1.1 and 1.3 make sense.
> 
> The third property doesn't hold at all.  Most users deal in terms of
> files.  If they can't transmit an entire file, then their bandwidth has
> been burned for nothing, and they get irritated.  So Un is a step
> function, with discontinuities spaced quite widely apart.

You mean "Property 1.4 doesn't hold at all.", right?

> 1.2 means that as you transmit more data, the utility (happiness)
> delivered by each additional byte decreases.  This is questionable.

You mean "1.1 means that as you transmit...", right?

--Z