Hello Fluff4,
Let me think, it was part of an article on peak coal,
peak copper, try google on peak uranium, there has been a lot of talk
about it so something will show up.
One of the problems is that it is taking more energy to obtain the
ore as the easiest is mine first. Remind you of something ?
Just in time will definitely finish as it will be replaced with
just buy it local.
I can only see ships being used for passengers, high value goods and
some bulk goods not available locally but are very necessary.
Four weeks from Europe would be quite adequate for most things and
if not good enough, just do without.
If we still have satellites in operation then the times for sailing
ships could be better as they would have better wx knowledge.

I have just remembered something I was told about mobile phones by
someone who would know; don't expect them to keep working for too long.
Anyway interesting subject but it will come slowly I hope.