Technical debt as a lack of understanding

See Technical debt as a lack of understanding on daverupert.com

Dave sums up the concept of technical debt with a quote by Ward Cunningham [VIDEO: 4:43]:

“If you develop a program for a long period of time by only adding features but never reorganizing it to reflect your understanding of those features, then eventually that program simply does not contain any understanding and all efforts to work on it take longer and longer.”