The only thing antibody testing will tell you is how many people have had a coronavirus infection this year. It won't tell you which coronavirus they have had, because the antibodies can't tell the difference. Coronaviruses are responsible for about 1/3 of all colds.
I know that the narrative that Covid-19 spread impossibly fast but most people never had symptoms is popular, but it is not scientific, nor is it a desirable situation. Studies of people who have been tested for actual virus have shown that about 3/4 of those who initially have no symptoms develop them later. And also that about 8% initially test positive without symptoms. These are numbers I want to explore more fully, since this narrative is dangerous for a number of reasons.
Let's imagine that Covid-19 is somehow spreading yet not causing symptoms. That means that you cannot ever assume that anyone you meet is safe to approach. There is nothing to tell you they are sick, and no way to protect yourself. And no way to know if you'll be one of the few who has no or mild symptoms, or be one of those who ends up on life support in the ICU. And asymptomatic does not mean harmless; I just read about a monkey study that showed that the infected monkeys had lung lesions, yet still appeared healthy. There are plenty of diseases that do not cause symptoms yet harm your body. HepC, for example, can cause liver damage and cancer but no one knows they have it until they are tested.
“Studies of people who have been tested for actual virus have shown that about 3/4 of those who initially have no symptoms develop them later.”
What “studies”? Show me a link to a credible well known source. And when does “asymptomatic” mean only asymptomatic in the beginning but later show symptoms? A person is either asymptomatic or they are not.
You seem to insist on coming up with different “facts” to suit your preconceived idea about this sham of a “Pandemic.”
Good excuse to stay locked down, eh?