Welcome to

For the first twenty years of my career, I (co)founded a series venture-scale software companies, growing each from an idea to a company earning millions in revenue, collectively serving tens of millions of customers.

I now use the knowledge gained from those twenty years to help new entrepreneurs.  My goal is to have them increase their odds of success by not repeating the common mistakes that I and my peers once made.  I do this in many ways:


The Next Step series of books guides entrepreneurs step-by-step through the process of getting from idea to operational startup, breaking the paradigm of startup investing, and explaining years of lessons teaching entrepreneurship.


The Next Step: podcast shares the lessons from the books plus other advice, anecdotes, and interviews, all in bite-sized audio pieces.

Accelerator & Investments

Fledge is a global network of conscious company accelerators, providing intense guidance, mentorship, investment, and support for a small set of entrepreneurs.

Africa Eats is an investment holding company focused on lowering hunger and poverty in Africa through for-profit solutions. The first spin-off of Fledge, it builds upon the work of a few dozen Fledge alumni who are building the food/ag supply chain across Africa.


Answering questions from entrepreneurs on Quora.

Plus in these various efforts, I do my best to uncover hidden assumptions, break investment paradigms, and seek solutions to income/wealth inequality.

And despite writing checks to entrepreneurs, I still consider myself first and foremost an entrepreneur, and as such every so often I simply have to create something new, such as:

The philanthropic investing service at Realize Impact, a 501c3 public charity that I co-founded, which lets any philanthropist turn a donation into an impact investment.

I hope something from this long list is of help to you.

Latest blog posts

You never really taste it…

I’ve never been able to explain why I have so hard of a time believing consultants. What is it about their role that make their conclusions so often so wrong? None other than Steve Jobs explains… in less than two minutes.

“I don’t think there is anything inherently evil in consulting” … but “You never really taste it.” – Steve Jobs

Double Entry: Gleeson-White

Who invented double entry accounting? The ubiquitous system of general ledgers, income statements, balance sheets, and cashflow statements found throughout businesses and quite a lot of households? This is yet-another of those concept so taken for granted that they seem to have been around “forever”, but thanks to Double Entry: How the Merchants of Venice Created Modern Finance by...

Four minutes one second less than five hours…

Many of the everyday details in The Work of the Stock Market told in between the history facts are often just as interesting as the history itself. Case in point, if you read the history of time zones, it seemed like the standardization was complete in the U.S. and Europe by the end of the 1800s. Yet in 1922… The difference in time between London and New York is four minutes and one second...

The Origins of Carried Interest

The standard structure for private equity funds (and venture capital funds) is “2&20”, as in a 2% management fee (±1%) and 20% (±10%) of the profits, a.k.a. “carried interest“. Why 20% of the profits?

Henry Kravis of KKR explains below, starting at 6:00. TL;DR: Necessity, as he and his partners had no capital to put at risk.


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Recent blog posts