Writing is therapy.

Partner, Castle Island Ventures. Cofounder, Coinmetrics.io

General Partner at Spark. Previously: Investment Partner at Kleiner Perkins, built products for people @Square & @Google. I'm told I talk fast.

Jonathan (@jonathan_tower) is Founder and Managing Partner at Catapult, a global early stage venture firm with assets in multiple geographies.

Blockchain developer, Hacker Noon contributor