[solresol]

> The volume of cargo carried by sailing vessels in the old days was orders of magnitude lower.

Surprisingly, no, it wasn't. I'll slightly fudge the numbers and talk in terms of proportion of world trade that was carried by ocean-going vessels (because if you double the population then it's reasonable to talk about doubling the number of ships).

The world economy was very globalised in 1913. That level of globalisation in trade wasn't matched again until the 1990s.

We're only a little more global now than we were in the age of sail.

The British navy and merchant fleet was a wonder of its era.

[adwn]

Show your work. Without numbers, those are all just assertions. And the assertion that the world's economies were more globalized before WW1 than after the Cold War is particularly dubious.