According to Penn State, we are probably the only intelligent life form with the abilities that we have.
just think of all the animals there are on earth. How many can use tools to really get things done.
now, think of all the animals that used to be here
now think about the billions of years it took for us to get here.
odds are that when we meet aliens, it's us finding them on their planet.
Take another angle to the question.
Say we had an omniscient view of all sentient civilization at this moment, where along the left side being numbers of sentient civilizations and the lower being relative advancement in Earth years. I am guessing there would be a Bell curve like distribution. Now we would be at 2015, but where would the center of the Bell curve be? Before us? After us? right in the middle? Lets make a very conceited assumption and assume that we are in a two sigma deviation (deviation of 500 years) from the average, and that puts the center of the Bell Curve at about a thousand years behind us.
IF there are as many as a million sentient races in our galaxy we have still thousands of more advanced sentient civilizations ahead of us.
Moral of the story; WE ARE BEING WATCHED RIGHT NOW BY SUPER GENIUS ALIENS.