Preheat oven to 375°. Spread the raw hazelnuts on a cookie sheet and roast for 8-10 minutes until they smell nutty and are slightly browned. Cool completely and then chop coarsely.
Make a batch of the World's Best Salad Dressing.
Slice off the top and bottom of the persimmons, quarter and cut away the core. Then, slice them thinly across.
Place the arugula in a bowl, top with the sliced radicchio and persimmons. Sprinkle the pomegranate seeds and hazelnuts on top and then toss with the salad dressing. Taste and add salt and/or more salad dressing as needed. Serve.