Reading “Nuclear Power Sounds the Retreat” (Business & Finance, Jan. 10), I was reminded of Paul Valéry’s observation that a difficulty can be a light. The coming closure of Indian Point, a major source of electric power for New York City, is a short-term difficulty that will light up the marketplace in alternative energy. Businesses able to discern the light will reap rewards by investing in ways to replace nuclear power with renewables, particularly with offshore wind. This is good for the climate, good for business…