Fund companies that manage target-date funds assume that young people will pick a faraway date where the allocation to equity is always very high.

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If Doximity is to scale, it may need to pick a bigger target market or develop new products for which its doctor-members are willing to pay plenty.

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Indeed, it points to such laudable projects such as a low-cost, wind-powered land mine detonator -- not exactly the kind of thing one would pick up on the next Target run (even on sale).

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