Sierra Leone and Charleston were both major centers of growing rice.
In Sierra Leone it was grown with free labor.
In & around Charleston, it was grown with people kidnapped from Sierra Leone.
Fields had to be cleared; leached of salt; and then irrigated at some times with salt water, and sometimes with fresh depending on the growing cycle.
It was engineering.
It was not.
Carolina rice was built on stolen engineers.
Something to think about, if you're educated and think that's going to save you.
There's no "late stage" about it. The US has been like this since it was founded.
And landlords ground peasants into early deaths for thousands of years before that.