Ask HN: Why fund or invest in open source software?

Hi all,

I have been struggling to justify to potential funding sources and investors why they should to invest or fund open source software (or open source "anything" in general).

I commonly receive critiques that there's a lack of IP protection, and no revenue model associated with it. I, admittedly, do not have a good defence beyond some of the purist views (open access to everything and broadly benefiting to the community).

For context, my experience has been in healthcare and medicine where privacy is, to a large degree, a concern.

What are your thoughts on this - both in healthcare and in general?

Thanks!