I'm writing some detailed articles on the topic, but check out this chart from Previn on the top performing funds from 2007-2015: https://mobile.twitter.com/zavaindar/status/1159660549615116...
All the $100M+ funds on this list are biotech funds: The column group, flagship, orbimed and foresite
Tech VCs have seen these returns and want in, but they have not been major players to date. In 2018 less than 10% of series a rounds in biopharma were led by tech VCs [0]
These days biotech startups can get very big very fast on comparable amounts as tech startups. But he structure in returns is such that you need more concentrated portfolios and low loss rates to do well
I think the narrative about biotech becoming more like tech is a way for tech investors to try to fit more power law driven portfolio strategy into biotech. Bioengineering advances have been incredibly important the last few years, but it is not really correct to compare the pace of product development and value creation in bioengineering to software engineering. I also think it's a bit of a red herring. Biotech VC has done fine on its own. If anything software VCs should take some tactics from biotech funds