RT Journal A1 Diamond GA, Kaul S T1 THe 300-year-old health care solution—reply JF Archives of Internal Medicine JO Archives of Internal Medicine YR 2009 FD October 26 VO 169 IS 19 SP 1806 OP 1818 DO 10.1001/archinternmed.2009.366 UL http://dx.doi.org/10.1001/archinternmed.2009.366 AB We appreciate the opportunity to clarify a few points in our Commentary.1 As we see it, the critical incentives for 17th-century London's fire insurers are identical to those for today's health care insurers. In both cases, reduced exposure to risk and better control of costs translate into higher profitability. Cherry picking is indeed one means by which insurers might reduce exposure to risk, but the practice is not limited to health care. Fire insurers also have long sought to cherry pick their clients (a practice well-known to those of us living in the hills of California). Those at higher risk are denied coverage outright or required to pay substantially higher premiums.