> On Oct 8, 2015, at 11:34 AM, David Lang <da...@lang.hm> wrote:
> 
>> If ack reductions are so very valuable, what's the chance of doing that on 
>> an end to end basis instead of in the network?
> 
> a little less than the chance of  shutting off IPv4  :-)

Hey, we can dream, can't we? :-)

> requiring changes to all the software on each end to enable this is wishful 
> thinking. The major servers could get the update pretty promtly, but updating 
> the client side?? not for a long time.

Yes, of course. That said, consider trends like

http://www.zdnet.com/article/latest-os-share-data-shows-windows-still-dominating-in-pcs/
http://www.netmarketshare.com/operating-system-market-share.aspx?qprid=11&qpcustomb=0
https://www.pinterest.com/pin/137148751123435826/

What that basically says is that corporations tend to pick a version and 
install every update after testing it. The folks still on XP are very likely 
people who installed a (potentially pirated) release in 2003 and have probably 
never updated it. If we can get this into the next MacOSX 10.11 and Windows 10 
update cycle, roughly 50% of computers will have it within six months, maybe 
three. If we can get it into common Linux distributions, we can probably cover 
the servers as well. 100% deployment - that might take until the XP computers 
actually all fry. Getting it significantly deployed - I don't see the cause of 
the pessimism.

You're correct that one has to update set-top-boxes and smart TVs. They get 
updates too, or at least mine do. It doesn't require buying a new TV, it 
requires getting the updated software.

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