In reality both of Hawkings points are valid but perhaps a little improbable.
As already pointed out, we have no idea how a techinologically advnaced civilisation would behav to us if they did come across one our many probes or signals. In fact, we have no idea how certain portions of our population would react to the discovery of another sentient species. For the time being, not making 'first contact' with another species would be the safest option.
With regards to the LHC, Hawkings career has been focussed on highly improbable events such as the big bang and other quantum phonomena. It is only natural that he addresses his concerns due to a probability which from his perspective has come to fruition before.
Sam
As already pointed out, we have no idea how a techinologically advnaced civilisation would behav to us if they did come across one our many probes or signals. In fact, we have no idea how certain portions of our population would react to the discovery of another sentient species. For the time being, not making 'first contact' with another species would be the safest option.
With regards to the LHC, Hawkings career has been focussed on highly improbable events such as the big bang and other quantum phonomena. It is only natural that he addresses his concerns due to a probability which from his perspective has come to fruition before.
Sam
"We need not suppose more things to exist than are absolutely neccesary." William of Occam
"Our doubts are traitors, and make us lose the good we oft might win by fearing to attempt" William Shakespeare (Measure for Measure: Act 1, Scene 4)
"Our doubts are traitors, and make us lose the good we oft might win by fearing to attempt" William Shakespeare (Measure for Measure: Act 1, Scene 4)