Western countries have always had trade restrictions on physical trade, why is digital trade different?
I'm referring to how digital assets can be owned non-exclusively, i.e. we can both have the same data.
In contrast material (or physical) assets are exclusive. Either I have it xOR you do, we cannot both own the same thing.
Stocks (and other sophisticated goods) are interesting because they mean we each own a fraction of something, even when that object cannot actually be easily split. But notice how there's still a sense of exclusivity; the same stock cannot be owned by multiple people at the same time.
Trade restrictions on physical goods don't exist due to matters of ownership.
> the same stock cannot be owned by multiple people at the same time.
This may be an irrelevant tangent, but that's entirely untrue.
regardless,
the restrictions on trade of physical goods exists due to matters of ownership over government-level permissions (licenses?) for import/export, taxation, an other such kinds of things. It's ownership over whole countries; that's the ownership at play when considering digital trade restrictions.