A taxation strategy. Taxes are set to the highest sensible value to get the happiness down to (usually) 70% in one or two turns, then to 0% to get happiness back to 100%. During the no-tax phase, population grows at the maximum possible rate, so in the next cycle, your income will be higher. When the planet has extreme climate so that there's no growth, Safe taxing is simpler and safer.

This is a testing version.
It may be incomplete, and have more bugs (or features) than the public live version at planetscentral.com.