I have cancer. Here's why I might decide to end my life. Or not.

And this is an unusual fatal illness: Many people who are diagnosed stay in reasonably good shape until shortly before they hit their Egress. So I could remain in a mentally strong condition, without pain, until it’s clear that my path is near its end. In that case, I intend to consider not waiting for the suffering. I could flip my own “off” switch.

But that possibility is the opposite of depressing, for me.