On 2/23/06, <b class="gmail_sendername">Robin Hanson</b> <<a href="mailto:rhanson@gmu.edu">rhanson@gmu.edu</a>> wrote:<div><span class="gmail_quote"></span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Oh, sure, it is very clear we live longer, and that the proximate<br>cause is that diseases that used to kill us no longer do. But ask<br>yourself where the mountain of evidence is that this fact is best<br>explained by the facts that we now have better drugs, doctors,
<br>sewers, and water supplies.<br>
</blockquote></div><br>
Let's take the most obvious case: diseases like smallpox, polio,
measles and whooping cough that were largely or entirely eradicated by
the use of vaccines. Are you seriously suggesting that it might have
been just a coincidence, that some mysterious alternative force made
the diseases go away just when the vaccines would have eradicated them?<br>
<br>
- Russell<br>