Here, “marginal” means “on the margin”—would it be better for me to have spent a certain amount of attention on this issue or a different issue? The word can mean something “of little importance” in other contexts, though.
I share your general skepticism about offsets—it is possible, but you have to be really careful the offset is actually counterfactual (e.g., that it results in the creation of a good thing that wouldn’t have happened but for you paying the offset). Don’t know about Wren specifically.
Here, “marginal” means “on the margin”—would it be better for me to have spent a certain amount of attention on this issue or a different issue? The word can mean something “of little importance” in other contexts, though.
I share your general skepticism about offsets—it is possible, but you have to be really careful the offset is actually counterfactual (e.g., that it results in the creation of a good thing that wouldn’t have happened but for you paying the offset). Don’t know about Wren specifically.