We're not talking about administering arsenic to people just in case we're wrong about thousands of years of experience. We're talking about randomizing exposur

We're not talking about administering arsenic to people just in case we're wrong about thousands of years of experience. We're talking about randomizing exposure to an activity that billions of people choose voluntarily, an activity that at worst has an effect of a few parts per 100,000. That's on the same order of risk as being struck by lightning. Unnecessary x-rays are likely worse. Why the outrage over this risk in particular? Declaring this level of risk to be outside the bounds of permissible research is an attitude incompatible with scientific progress. It's elevating short-term harm prevention to an unjustifiable extreme that makes it impossible to determine whether we have an accurate model of the world.