Professional scientist here. I would take a table of logarithms. In a world without computers, the logarithm table and slide rule are the essential tools of how things got built. We built the Golden Gate Bridge and put a man on the moon using nothing more than log tables.

Any one person can remember the gist of the scientific method and write it down on a page. To write down a quality logarithm table you would need 500 pages.

Do you know what would make Latin America safe against foreign interventions and coups: robust government and civil institutions with broad popular support. Blaming America for it’s history of interventions will do nothing to protect you from China doing the same thing. The only people who can build and protect the autonomy and liberty of Latin America are the Latin Americans themselves.

Background: my family was forced out of Nicaragua during the US intervention in the 1930s.

I don’t agree this is gentrification, but aside from your questionable vocabulary I don’t disagree. I came from reddit, understand that it is different, and celebrate the differences.