A crash course in changing the world.
My favorite holiday is Christmas, and my family ALWAYS decorates a Christmas tree. Some Christmases we even decorate two trees. We also decorate the outside of our house with Christmas lights. In 2020, I imagine that we would have some way to power the Christmas lights using sustainable energy. Maybe we will harness solar energy during the day and that will be enough energy to light up the house and tree all evening.
I would also imagine that there will be a form of sustainable energy that will heat the oven so we can make our Christmas dinner. I don't know what technology will be developed in the next six years, but I would imagine it would make these things possible.