Invested in Routable's Series B
Thesis: “A business payment is more like moving a bill through Congress" - the future of B2B is going to have higher volume micropayments and real-time payments based on usage and API use, etc...and Routable automates all of it - vastly speeding up the movement of money in B2B.

https://techcrunch.com/2021/04/15/altman-brothers-lead-b2b-payment-startup-routables-30m-series-b/