Economics Explained got some of the worst analyses I've seen on youtube, like that one video he asserts that the Netherlands is the most unequal country in the world. https://www.youtube.com/watch?v=tW_kw6OPXc0
In the 9th code snippet that's not an example of variable shadowing, it's just variable reassignment. Shadowing involves variable assignments in different scopes.
edit: I should've called it "variable redefinition" or something like that I guess, my mistake. Reassignment is definitely not the correct terminology for this.
Still, it's not shadowing because the new binding of 'x' is not effectively shadowing some other 'x' name, it's just taking its place in the same scope. And this is orthogonal to the memory allocation of the assigned objects.
I see a lot of bullshit being posted here. Bolsonaro himself actively encouraged the deforestation, during his campaign and during all of his current administration until now.
"The fires are fueled not only by a rise in global temperatures but also by Brazil’s President Jair Bolsonaro. The fiery, anti-environment populist has encouraged settlements in the Amazon region, sacked the head of the government agency that monitors deforestation from space, and just this week blamed NGOs for setting the fires to make him look bad."