> The interference patterns can be washed out by decoherence: They vanish as the researchers admit gas into the apparatus, increasing the interactions of the mo

> The interference patterns can be washed out by decoherence: They vanish as the researchers admit gas into the apparatus, increasing the interactions of the molecules with their environment. I know that this has been know for a long time, but it is nice to see a clear experiment that shows that decoherence has nothing to do with 'measurement' or 'looking' like most stories about quantum phenomenon try to imply. Nice to see this particular abuse of the anthropic principle laid to rest.