Chris,

I must say that this time it is Petra that justifiably missed a point. And as an "outsider" I missed the point too. Chris, if you were trying to say something about X-rays (versus others radiation, including ULF) it was as unclear as it can get.

Your cat-scan did not give you ear-tones. Big deal. I get ear-tones and have had a tone-less cat scan too. As have thousands of others. So? You mentioned in previous posts that you also hear ear-tones, but you did not bother to mention that here. Because I remembered that, I assumed you were not being condescending. But it looked that way anyway.

Posting is dangerous, Chris. Do not do it on your breaks from writing "serious"papers. Stay just as serious here too.

I know you are trying to be light-hearted about your experience with the concussion, but it looked to Petra like....

Never mind.