Is There a Difference Between Manual Dishwashing and Water Running?

Bob Greene: Typical manual dishwashing of just two sets of dishes costs more energy and water than running a full load of dishes in a modern dishwasher. He says there's a reason that modern thermostats are smart, like you program your night zone versus your day zone. And if you just had it set to one thing and never changed it, why would we have these ultra programmable with little green leafs next to them? "I'm a sucker. I've been marketed to."