Tom Yeung here with your Sunday Digest. In 1885, the first modern roller coaster opened to the public. “Gravity Pleasure Road” was an instant success, generating $600 a day in revenues – roughly$20,000 in today’s money. The Coney Island ride featured a lift hill that would pull a bench-like car up a slope, and then release it downhill to the delight of its thrill-seeking riders. Of course, roller-coaster rides are far less amusing when personal wealth is involved. This week, shares of Nvidia Corp. (NVDA) p ...