Earlier this month, Sen. Ed Markey (D-MA) and Rep. Alexandria Ocasio-Cortez (D-NY) introduced a Green New Deal resolution laying out an ambitious set of goals and principles aimed at transforming and decarbonizing the US economy.

The release prompted a great deal of smart, insightful writing, but also a lot of knee-jerk and predictable cant. Conservatives called it socialist. Moderates called it extreme. Pundits called it unrealistic. Wonks scolded it over this or that omission. Political gossip columnists obsessed over missteps in the rollout.

What ties the latter reactions together, from my perspective, is that they seem oblivious to the historical moment, like thespians acting out an old…