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Comment Re:the joker in the formula (Score 1) 686

You are ignoring the fact that it seems like one highly intelligent and technology-developing species could probably not evolve in coexistence with another one on the same planet, at some point one would win and kill off the other one.

I'm sure it's been proposed/discussed many times before, but I don't know if this concept has an "official" name or not.

Comment Re:Progenitors? (Score 4, Interesting) 686

Directionality is a mostly irrelevant consideration.

The fact that an antenna is 9db or 30db higher in one direction quickly becomes irrelevant with the vast distances of space. Antennas don't work like flashlights. They are more like a light bulb with a two-way mirror on one side that reflects 50% of the light and lets 50% of it through out the back. At VHF and above, things like mountains act like mirrors that reflect signals straight up (among other directions), as well.

You are somewhat wrong about AM... at least broadcast band AM is mostly only directional in the sense that there's dead zones straight off the ends of the dipole. They are shooting quite a bit of signal upward. Our ionosphere does strongly reflect and attenuate what would make it out to space in those bands though.

This goes toward your comment about the 50s and 60s... we have far more powerful transmitters in operation now (some VHF TV the better part of 1 megawatt!), and in bands that aren't reflected by the ionosphere. If anything we are getting louder and louder.

Unfortunately the first thing they might see of humanity is free-to-air broadcast TV, and just assume that we are all complete idiots.

Comment Re:Level playing field (Score 1) 347

they will act like any other local utility and tell you to wait 5 years until they gather enough data that there is a demand for it, then take another few years to study the problem, then spend another 5 years begging for money in the budget and finally upgrading the network

Actually, go check out Wilson, North Carolina. They embarrassed Time Warner so badly, Time Warner strongarmed the state into making municipal broadband illegal. It creates a lot of cognitive dissonance with the "government can't do anything right" crowd.

Which is hilarious considering the current system is just government-granted monopoly anyway, yet they defend it voraciously because, uh...privatization!

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