> Most countries in the world rely on global supply chains, and many countries are now closing their borders to external trade, meaning that their own prices will sky-rocket, likely causing layoffs and bankruptcies, causing stimulus packages and therefore inflation

Which countries, exactly, are closing their borders to trade? There are definitely a lot of restrictions being placed on travel and tourism, but banning cargo makes no sense in this context.

If anything, things will probably just get lonelier for merchant seamen.