First, a quote from Chimmy Ray:
This is possibly, and probably, not true. Just because our instruments can only detect things traveling at the speed of light or slower doesn't mean they don't exist. You must keep in mind that we are limited by our instruments and observations.
Now, onto the main issue: life on other planets (where the thread should be). If our planet was created, there is a chance that another planet like ours could be created. This is assuming our environment is the only plausible source of life. If something happens once, there is always a chance that it can happen again. Because we don't know the limits of the universe, we can't really say what the chances are with a formula.
Assuming we are bound by the laws we know about now, it would take an incredibly long time for anything to reach our planet from another. The nearest star is 4.2 light years away. This means that it takes four years, traveling at the speed of light, to travel from there to here. Assuming the nearest life is in another galaxy, it would likely take thousands or millions of years to reach us. By then, the life would probably be dead, but let's say it wasn't. It would reach us millions of years after they reached the point where they could launch the ship or whatever. Although our star is fairly new, it's unlikely that they would reach us, even if they are from one of the oldest stars (although we don't really know the age of the universe, so I can't say this for sure).
Now, I've so far been using only information we know about. There is a very good chance that there are further waves that travel through space. We can't detect them, but that doesn't mean they don't exist. The magnetic properties of Earth may be preventing the waves from reaching us, or maybe our instruments simply can't handle it because it's traveling to fast or in a different frequency than we have access to. Beings may be communicating with each other many times faster than the speed of light.
Also, it may be possible that other beings have abilities we don't have, like magic. We can't rule out conditions simply because we can't see/observe them. This applies to just about everything, which is why this is such an uncertain topic. It may be possible that certain forces bend or completely ignore our physics or chemistry or biology, which means that the possibilities are endless. We wouldn't be debating this, nor would there be so many hypotheses, if we had a solid knowledge of the universe. This is also why there are so many religions which attempt to explain what we don't know from science. We now see the Greek gods and goddesses as silly because we now know exactly what causes some of the things they attempted to explain (like echoes). Alternatively, we may be looking back on our ideas as silly when we discover something new. Maybe there are no gods/goddesses, or maybe there are many. We look at religion as a way to fill in the gaps because we can't live without having an explanation for something, and this is why we sometimes depend on it.
Its speed is just impossible to reach by anything but light.
This is possibly, and probably, not true. Just because our instruments can only detect things traveling at the speed of light or slower doesn't mean they don't exist. You must keep in mind that we are limited by our instruments and observations.
Now, onto the main issue: life on other planets (where the thread should be). If our planet was created, there is a chance that another planet like ours could be created. This is assuming our environment is the only plausible source of life. If something happens once, there is always a chance that it can happen again. Because we don't know the limits of the universe, we can't really say what the chances are with a formula.
Assuming we are bound by the laws we know about now, it would take an incredibly long time for anything to reach our planet from another. The nearest star is 4.2 light years away. This means that it takes four years, traveling at the speed of light, to travel from there to here. Assuming the nearest life is in another galaxy, it would likely take thousands or millions of years to reach us. By then, the life would probably be dead, but let's say it wasn't. It would reach us millions of years after they reached the point where they could launch the ship or whatever. Although our star is fairly new, it's unlikely that they would reach us, even if they are from one of the oldest stars (although we don't really know the age of the universe, so I can't say this for sure).
Now, I've so far been using only information we know about. There is a very good chance that there are further waves that travel through space. We can't detect them, but that doesn't mean they don't exist. The magnetic properties of Earth may be preventing the waves from reaching us, or maybe our instruments simply can't handle it because it's traveling to fast or in a different frequency than we have access to. Beings may be communicating with each other many times faster than the speed of light.
Also, it may be possible that other beings have abilities we don't have, like magic. We can't rule out conditions simply because we can't see/observe them. This applies to just about everything, which is why this is such an uncertain topic. It may be possible that certain forces bend or completely ignore our physics or chemistry or biology, which means that the possibilities are endless. We wouldn't be debating this, nor would there be so many hypotheses, if we had a solid knowledge of the universe. This is also why there are so many religions which attempt to explain what we don't know from science. We now see the Greek gods and goddesses as silly because we now know exactly what causes some of the things they attempted to explain (like echoes). Alternatively, we may be looking back on our ideas as silly when we discover something new. Maybe there are no gods/goddesses, or maybe there are many. We look at religion as a way to fill in the gaps because we can't live without having an explanation for something, and this is why we sometimes depend on it.