If it’s indestructible straw then you could set it on fire and it would burn perpetually, you could do some real damage to the t-rex with that. Same thing if it’s made from indestructible bricks or indestructible wood.
I don’t think indestructible straw could burn-- fire is sutained by a reaction that destroys its fuel, if the fuel cannot be destroyed it cannot produce the heat fire requires to stay alive.
If it’s indestructible straw then you could set it on fire and it would burn perpetually, you could do some real damage to the t-rex with that. Same thing if it’s made from indestructible bricks or indestructible wood.
I don’t think indestructible straw could burn-- fire is sutained by a reaction that destroys its fuel, if the fuel cannot be destroyed it cannot produce the heat fire requires to stay alive.
If it’s indestructible in the first place we have to accept that it functions outside of known physics
Eh, a big fat concrete bunker would be close enough to “indestructible” for the purpose of this thought experiment.