A recently released report details the record growth in funding in the digital health space that has experts wondering whether a market bubble is forming. This much is clear: No flood of cash can replace the unique insight that physicians offer health tech entrepreneurs to ensure that innovations are safe, effective, scalable and evidence-based.

The report—“2018 Year End Funding Report: Is digital health in a bubble?”—comes from San Francisco-based health tech funder Rock Health. Researchers tallied $8.1 billion in funding in digital health last year, up 42 percent from $5.7 billion in 2017.

My latest for the AMA. The whole shebang.