Working on FogBugz changed my perspective on technical debt. I used to believe, as I suspect many do, that it was strictly a bad thing. You took a shortcut because you’re lazy, and then it comes back later to bite you. Count how many times that Wikipedia article uses the word “lack”. As the originator of the term Ward Cunningham explains, that’s off the mark. Buying something with credit doesn’t automatically imply you’re not going to pay your bills.

Instead of thinking of technical debt as yesterday’s work that I failed to do, I think of it as tomorrow’s feature I can have today. You have to pay interest, but in the mean time you’re shipping a product, have a roof over your head, and are keeping the lights on. A much hipper programmer might say something like “you ain’t gonna need it.”

In one sense, Wasabi was a rather substantial payment on the debt we had accumulated. FogBugz was written in a now dead language. Building a compiler extended the life of the product, though of course now we had to pay for the compiler, too. So maybe it was more like a bridge loan, or refinancing. The financial wellbeing of Fog Creek at the time depended on FogBugz, so a total rewrite would have been a terribly risky investment. Even if it costs more in the long run, spreading those payments out over time gets you a lot of stability.

while I also enjoyed Coding Horrors: Has Joel Spolsky Jumped the Shark?[0], Jeff either missed this point or ignored it on purpose to support the shark-jump theory

[0] http://blog.codinghorror.com/has-joel-spolsky-jumped-the-sha...