Unfortunatly, the laws of information theory place an upper limit on how much information can be transmitted within a given section of the radio spectrum.
True, you can improve things by putting up more towers and transmitting over shorter distances, or possibly point to point links, but there really isn't much available spectrum LEFT for new services, with the exception of the analog TV signals (which the TV stations seem very reluctant to give up).
Also, the trend has been towards commercial allocations, based on auctions, so that any spectrum opened up for wireless communication won't be free to use, because those who bought the rights to that EM real estate are going to want to make money on their investment.
The non "open source" parts of the netrek "blessing" authentication were not in the source code, just a secret key stored in the client. There is no closed source nature for that solution, as the secret is not really part of the source code per se, just a compiled in constant
Slashdot Mirror
A short article I wrote for MP3.com about a year ago on why SDMI can't work.
Unfortunatly, the laws of information theory place an upper limit on how much information can be transmitted within a given section of the radio spectrum.
True, you can improve things by putting up more towers and transmitting over shorter distances, or possibly point to point links, but there really isn't much available spectrum LEFT for new services, with the exception of the analog TV signals (which the TV stations seem very reluctant to give up).
Also, the trend has been towards commercial allocations, based on auctions, so that any spectrum opened up for wireless communication won't be free to use, because those who bought the rights to that EM real estate are going to want to make money on their investment.
Nicholas C Weaver
nweaver@cs.berkeley.edu
The non "open source" parts of the netrek "blessing" authentication were not in the source code, just a secret key stored in the client. There is no closed source nature for that solution, as the secret is not really part of the source code per se, just a compiled in constant
Pong was much later, done in the early 70s IIRC. This is much older, although what I really wonder about is the display device used in the origional.