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


I came across the word “transmogrify” today and wondered if the author first learned it reading Calvin & Hobbes, as I don’t recall ever seeing the word before that. Luckily for us denizens of the 21st Century, we can ask Google’s Ngrams the popularity of a word back a few centuries: Turns out no, the word isn’t new to Calvin & Hobbes. It was used to describe...

Africa’s population patterns

1.4 billion people live in Africa. But that population is far from evenly distributed. The southern edge of the Sahara is clearly visible in West Africa, as is the enormous population in Nigeria. Then over in East Africa it is even denser in Kenya, Uganda, Tanzania, and over into Rwanda around Lake Victoria and Lake Kivu, and yet denser still down in Malawi. See the original post on www...

The Snowball, another Buffett biography

If you want to understand the history of Berkshire Hathaway there are two good books to choose from. Buffett: The Making of an American Capitalist by Roger Lowenstein, which I summarized six months ago, or The Snowball by Alice Schroeder, summarized below. The main difference between the two tellings is that Lowenstein focuses more on the Buffett Partnership and then Berkshire Hathaway as a...

Why Not?

Other people, see things and . . . say ‘Why?’ . . . But I dream things that never were– and I say: ‘Why not?’ – George Bernard Shaw This has shown in my 30+ year career repeatedly. Most recently a few months ago, when pondering the “Missing Middle” of capital for startups in general, and SMEs in Africa specifically. Why? Why is it taking so long for...


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Recent blog posts