Why can’t gravity be blocked or dampened?

Question

If something is inbetween two objects how do the particles know there is something bigger behind the object it needs to attract to?

In: Physics

Answer 1

Actual ELI5: We don’t know how to because we don’t know how gravity works. We can predict how it will behave very accurately, but we don’t understand the actual reason why it happens. We can have very accurate models; this much mass will create this much gravity, but why it does that is still a mystery. Since we don’t know what causes it, we cannot even start to block or dampen it.