The Problem with Evolution

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Ok, would extraterrestrials be a certainty given that evolution is true?

If so, lets assume they or some of them have developed some kind of "faster-than-light"
mode of transportation.

Next, if they could come here, then what is stopping them from leaving a tangible presence?

Time, chance and reason.

Star systems close to ours are not much younger or older than ours (in astronomical terms).
Rarely does intelligent life evolve; and only under harsh conditions - whether environmental, or to outsmart prey or predator. Third; this is a crappy, primitive little backwater - if FTL has been invented by alien sentient, why would they come here, and how would they even know we exist?

Drake equation probability, or how would you know this?



Aside from the radio signals which would go out for at least a 70 lightyear radius, even we are detecting exosolar planets and there would be no reason to think that if another intelligence existed that they wouldn't be able to detect us or compute probable locations of life. This presumes that life can develop from pure chemistry though, which isn't a certainty in my book.

I would agree. Recent advances in detection of extra-solar planets invalidates the drake equation(which was silly in the first place).

Actually, rareity of sentient life is based on my own theories of survival necessity. By observing events and probabilities, it can be identified that most worlds fall under, again in astronomical terms, "stable" events - stability produces slow evolution, and barring severe biological competition (as we cannot begin to detect such things yet, it's an uncertain thing), "survival of the fittest" doesn't come into play when a stable environment doesn't bring such situations. Conjecture and theory, of course, based upon what limited information we can discover for the time.
As for how they'd know where here; 70 lightyears, by reckoning of probability, would only just be far enough for minimal awareness... Ifthey could conceivably not have their own interests or problems, interpret the signals as being from unidemtified aliens, or even care to - after all, advanced technology is no guarantee of advanced culture. Besides which; earliest signals sent haven't yet reached as far as the theorized "bubbles" of probable sentient regions. There's a thirty second gap between earth and moon alone!

I believe in the existence of sentient alien life, but only under mathematic principals. It's impossible for only humans to be sentient, as impossible as it would be for just one sun.

Just to clarify - my iPhone doesn't let me use edit, for some reason - I know drake is bollocks. My principals are similar, granted, but account for far more variables than that rubbish - to say the least!

You don't always have to rely ok others processes.

If Earth is typical and the way humans are treating it is standard intelligence seems to guarantee that life will develop powers it cannot control and within a mere thousand years of technical development it will self destruct.

It is neat when one develops their own formulae.

Right. So, we're all dead now?

Actually, Earth would be quite typical, considering the theorized chemicals for biological catalyst and principles of physics governing worlds. But, that's an interesting point - Ive even read it in science fiction by Brian Aldiss. Even if civilizations of alien sentients would rise, what is the guarantee they would not fall?

You feel ripped off! try going through the 70s with the promise that you will have a hover car by the year 2000. You want wings meh! where's my f*****g hover car

A good many are merely brain dead but be reassured, the body will soon follow.

Clinically brain dead, or is that just an opinion?

Not being a neurologist I have to judge by appearances.

Well, before this conversation becomes incendiary:

[youtube]http://www.youtube.com/watch?v=Zcs0d0pDeQA[/youtube]

What is genetic purity? Are you implying that Aspies are genetically pure? Oh boy. Get over youself, kid.