User blog comment:Dracoliche/Things to come.../@comment-24053170-20190801174946/@comment-43309486-20190801191100

A one way trip? Not unconditional.

One thing could happen. Mr. and Mrs. Hiraga are on a journey with a plane - and the plane flies into a eclipse.

But I consider, that nobody will open this box again. The reasons you have told are imperative.