I am sorry to say there is too much point to the wise crack that life is extinct on other planets because their scientists were more advanced than ours.
Scientific discovery consists in the interpretation for our own convenience of a system of existence which has been made with no eye to our convenience at all.
The means by which we live have outdistanced the ends for which we live. Our scientific power has outrun our spiritual power. We have guided missiles and misguided men.
Science must constantly be reminded that her purposes are not the only purposes and that the order of uniform causation which she has use for, and is therefore right in postulating, may be enveloped in a wider order, on which she has no claim at all.
As both the Mercury and Apollo programs have shown, our science and technology are so powerful that, if an intense effort is made, we can do almost anything we want in say, ten years - provided we are not in conflict with the laws of nature.
There is more than a mere suspicion that the scientist who comes to ask metaphysical questions and turns away from metaphysical answers may be afraid of those answers.
Medieval Technology? The Middle Ages invented, among other things, the crank, the horse collar, eyeglasses, the flying buttress, the stirrup, the windmill, the wheelbarrow, printing, firearms, paper, the canal lock, the compass, the rudder, the mechanical clock, the spinning wheel, and the treadle.
Sit down before fact as a little child, be prepared to give up every preconceived notion, follow humbly wherever and to whatever abyss nature leads, or you shall learn nothing.