Re: False expectations? Future promise.

George and Marie Fero (
Sat, 13 Jul 1996 16:14:43 -0500

No problem with your reasoning, I agree fully that this is new technology.
However, I wouldlike to get my color quickcam to work with it to try out
this technology. Anybody with experience using ECU with a color quickcam out
there? I can't transmit a picture.


At 01:46 PM 7/13/96 -0700, Dennis J. Streveler wrote:
>Gang, gang, gang! (my version of a primal scream! :)
>It's time we had a little chat. It amazes me that folks get CU or ECU and
>expect tv-like video, dolby stereo sound, and lord only knows what else!
>THESE ARE UNREASONABLE EXPECTATIONS. The fact that you can get ANY audio,
>much less VIDEO over the Internet is truly an amazing feat!
>Consider the following:
>1) The Internet was NEVER designed for time-sensitive applications. It WAS
>designed to survive thermo-nuclear war (but that is another agenda!)
>2) The pipes most people have currently to the internet are amazingly
>narrow. POTS (plain old telephone service) is very narrow for sending data.
>Consider that an every day tv picture requires a bandwidth of about 180
>MILLION bps (bits-per-second) while your modem MIGHT hit 28.8 THOUSAND bps
>and you can see the problem! And even with "higher" bandwidths, such as ISDN
>at 128 THOUSAND bps, it is still a very long way from any order of magnitude
>truly required to provide "acceptable" (real?) video. (In fact there is more
>precise information on this -- it would appear at ATM-speed, which I think
>is 45 MILLION bps, things get quite reasonable. For example, you can watch
>neurosurgery at this speed without anybody complaining.)
>3) The Internet itself is congested. Thus, that packet might just not make
>it thru the tangle of routers that are now in place.
>CU-SeeMe was a marvelous piece of work, which ingeniously found tricks to
>use to get some video, and some audio, to you around the block or around the
>world. This is a marvelous development, one which portends an era of
>improved worldwide communications -- which has implications for everything
>from cultural development to medicine! We owe it to some very inventive and
>ingenious people at Cornell, people like Dr. Steve Erde, and Tim Dorcey and
>Larry Chase, to name a few, who truly worked some magic.
>I too get very frustrated with all the limitations. We will look back at
>this in a few years (months??) and say it was all crazy and laugh! Sort of
>like the original TRS-80 computers with 2K of memory! Or shortwave radio!
>Or, I suppose the Wright's plane at Kitty Hawk.
>Come'on now, doesn't everyone fully realize that you are seeing the
>emergeance of a totally new technology? Even at this stage, it is truly
>exciting and amazing. But remember, it is best thought of as a solution
>where "ANY picture is better than NO picture." So, lighten up, be patient,
>learn from your experiences with this level of perfection, and dream about
>what will likely be available very shortly. The world is going to shrink
>another few sizes sooner than you think!
>Happy trails,
>Dennis J. Streveler, Ph.D., | Internet:
> Systems Consultant | CIS: 71036,1645
> | web:
> -Future Technologies in Medicine / | CUSeeMe:
> Telemedicine +------------------------------
> -International Software Development | 415 239-1441
> Methodologies | 415 469-9476 fax
> +------------------------------
> -Human-Computer Interface Design | 127 Lake Merced Hill
> for Casual Users | San Francisco CA 94132 USA
>My job? To send the appropriate electrons hurtling around the globe.
Drs. George & Marie Fero
G&M Educational Consultants

Phone: 501 234-8884
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