How many aspiring billionaires can you cram into the lobby of a five-star hotel that’s under construction? It was a question on the minds of thousands of attendees of the three-day Milken Institute Global Conference which has gotten so big and popular that some overwhelmed guests were forced to take extended wellness breaks to protect their well-being. This year’s wellness garden, set up inside the Beverly Hilton , was by far the most robust in recent years offering red light therapy, Reiki therapy , sound immersion baths and a professional astrologer who was giving asset managers a sense of how their careers might unfold. One could be forgiven for feeling slightly overwhelmed at this year’s conference where the cost of valeting your car at the neighboring Waldorf Astoria cost $100. How many aspiring billionaires can you cram into the lobby of a five-star hotel that’s under construction?…