Which lesson were learned from the past?
The Australian law was great for the politicians, it let them claim a David v. Goliath victory over US mega-corps, regardless of the actual results.
So did the Canadian politicians learn that they can win a few votes by appearing to wrangle some foreign tech companies into submission?
Or did they learn that the law needs to ensure Facebook doesn't become the gatekeeper of what news is shared; and Google has to support actual journalism and journalists - not just shareholders; and the definition of news outlet needs to be objective and subject to oversight?
Biting the hand that feeds IT
