[sixstringbudha]

>Can you suggest an environment conducive to life that isn't exposed to EM radiation? Life itself creates EM radiation.

There is nothing in the definition of "life" that warrants an ability to observe EM radiation or create it for that matter..By the way, what is the definition of "life" that you are using here?

>there are fundamental forces left to be discovered then they are not having any observable effect on the world..

So just because we haven't discovered something, does it mean that that thing is not observable at all? We are still discovering "things" in our own body, let alone in the entire world. The fallacy that human beings are capable of detecting every observable (by observable, I did not mean observable with our current tech) phenomena in this world is exactly what I was indicating before.

[flukus]

> By the way, what is the definition of "life" that you are using here?

An incredible loose one. Basically any process remotely complicated enough to call life would be producing infra red radiation at least. From there the evolutionary pressure to be able to sense it is huge. Eyesight on our own planet could have evolved to see heat long before sunlight.