[duncanhill]

That link was quite the fascinating read. Here's an open question, but do others experience some form of anxiety when thinking about future developments such as this?

It's not out of fear. To me, I want to truly experience the advances, not just perish and be forgotten in time. Science is so blissfully fascinating; there's so much yet to learn.

Perhaps a better way of putting it is a realization of your own mortality?