Comment by 90s_dev

Several times in the past few months, while working on my project, I spent a week writing something exploratory within it, and after all the lessons were fully learned and absorbed, erased that whole part and rewrote it in just a day. I could have kept the week long buggy and badly designed version of it and saved a day of work, but it would have drastically slowed down both development and maintenance of the overall project.