if your talking about why i switched from talking about hard drive to bandwidth, obviously hard drives are cheap so the other 'cost' is internet speed
if your talking about my reasoning to talk about UPLOAD instead of download.. there is a technical reason for this
if your talking about why i am mentioning uploading live video. as oppose to a tweet there is an obvious reason for this too

the reason i used live streaming is because its a real life scenario people can understand of large data moving..
(upload 10minutes of SD(0.5mbIT/sec) quality video=~37mbyte of data)

months ago lauda attempted to debunk WATCHING videos as that was only download bandwidth to which i replied months ago with UPLOAD stats of livestream recording at that time. and today was reminding him of the facts that the internet as a whole is not a problem for 2-4mb blocks upload and by default definitely no issues for download

though the internet is proven to be fast for hundred of MILLIONS of people as shown by all the countries doing livestreaming to prove its not a dream. the community accept some places can get over 100mb/s, but as a safe level the majority feel 2-4 is acceptable.. even core believe 4mb is acceptable now.
im not going to get into the debate of someone else advocating 20mb, as that is just poking laudas bear and not something the community as a whole could consider right now(though technically possible).

i personally have only been advocating for 2mb this year knowing rationally that in the near future technology progresses to allow for more (even if the technology is already available now. its best to stay in the safe zone)

in short 4mb is internet safe, 2mb is even safer so data speed debate of 2mb should be considered resolved as it was before late 2015 (even in cores 4mb eyes, 2mb is safe)

which is why i laugh hard when lauda was saying 2mb was bad.. yet his friends are saying 4mb is acceptable, and lauda has now backtracked to say 4mb is acceptable "because its core". but 2mb is still bad.

even if its a 2mb base 4mb weight linear validation rules.. lauda will still not be happy and will always try to debate some crap to keep core as the overlords, rather than all implementations coming to a joint agreement making all implementations all on the same level playing field coming to a joint consensus, which the community thought we reached before last christmas. and then tried to get core back inline in spring. and then again in summer..