Miami is getting a lot of heavy rains right now. Because all my seedlings are exposed to the elements, this is taking a heavy toll on the plants. Only the strongest will survive. Condition normal for Miami.
Ahh - chaos theory vs. Darwinism. Your approach is more the former than the latter as it assumes no role for random happenstance.
Of course if they were sheltered somewhat now until they obtained some size and root structure then Darwinism would apply and the odds of individual survival relative to its strength and quality would increase.
I have an assortment of sizes of seedlings from 2 leaves to 8" tall.