However my knee-jerk reaction is that, the various programs governments will incentivize regarding foreign investment and relocation are not necessarily in the best economic or social interests of the locals for a given area, despite that governments intent.

One story I recall from earlier this year was regarding Lisbon and the backlash against their visa [1]. From the article it's obvious there were other (tax) incentives that existed prior to the nomad visa, however it appears to me that the visa was a turning point in public discourse on the topic, as it incentivized highly paid individuals to relocate to Lisbon (4x the average Portuguese salary).

Though I don't disagree that it could still have been weighed by the government and determined it to be a net-positive still.

[1] : https://www.politico.eu/article/portugal-digital-nomads-bubb...

I came upon this which I think is a similar (if not the same) reaction as is occurring in OP.

https://thehappyscientist.com/content/simple-electrolysis

And in the final paragraph states that, and I'm loosely plagiarizing here, the negative ions created in an electrolysis reaction are attracted to the positive/live terminal*, and in the presence of chlorine (as in salts found in the potato) the copper (wiring) react to form green copper chloride.

Edit: not battery, but positive/live terminal

i find the knuckle mnemonic interesting but very difficult to use but i've only been trying it for the last 5 minutes

maybe its a visual issue and the same reason the poem has served me better