site: https://www.kalzumeus.com financial infrastructure writing: https://www.bitsaboutmoney.com podcast: https://www.complexsystemspodcast.com

My best email is patrick@ the top domain. Open invitation: if you're reading this, I'm happy to receive email about any software/startup/etc topic from you at any time. I generally reply to about 60% of unsolicited email from HNers, and if I don't reply to you, it is only because I got busy, not because of anything you said.

I write a lot. What I write here is unless otherwise stated in my personal capacity, and opinions expressed may not be shared by employers, clients, friends, etc.