Indeed. I expect Tyler Farrar will 'win' today followed by Leopard Trek and then the rest of the peloton. A sombre day.
However, despite the sadness and the understandable maudlin views of 'why do we do this?' it is essential to remember that which cycling gives, and to not let it be overshadowed by what has been taken away. Remember the joy, the pleasure, the great times. Live life to the full, however long or short that life may be.
Remember and celebrate with sadness for what is no more, but with joy for what has been and will continue to be. And treasure the smiles, the laughter, the euphoria.