Honestly - a few of the replies to this little tribute to engineering excellence exhibit a level of stupidity that suggests to me that it won’t be long before our spacecraft are the only thing that remains of our increasingly dim-witted civilisation. Until recently my guess has been that the answer to the Fermi Paradox might be found in biology - complex biological systems are rare. I’m increasingly of the view that the reason for The Great Silence is that civilisations are inevitably crushed by the weight of nobheads shortly after inventing the internet.