@Hyperfish101
Yes I get we can’t stop the virus but we can slow it down to stop services behind overwhelmed and deaths totting up rapidly.
Yes, I loved the "dodgeball" example a few days ago.
If you're in a sports court and there's one ball being thrown around randomly, you can probably avoid being hit as most of the time it won't be anywhere near you and you can see when it's heading your way and avoid it.
But when there's 5 balls, you've a higher chance of being hit and less chance of seeing them all to avoid them.
When there's 10 balls, you've no chance of avoiding them.
Same with covid. If a vulnerable person goes out to the shops or wherever, if, say, only 1 in a thousand is walking around with covid, they'd be very unluckly to come into close enough contact with that one person to catch it and even if they did, the viral load would be low if it was a fleeting contact. However if the same person goes out and there are 1 in a hundred walking around with covid, their chances of catching it are much higher and chances of the viral load being higher are also much higher.
Keep the numbers low over a longer period of time, and the chances are the vulnerable will never catch it, especially if they are careful and avoid crowded places, maintain social distancing, wash their hands, etc etc. If everyone gets it at the same time, the vulnerable is going to catch it however much they try unless they lock themselves away (even that's not guaranteed as they will come into contact with delivery drivers, tradesmen, etc etc).