 reasonable bit of technical stuff for a bit later and either this will speak to you from the point of view of reinforcing a perspective that perhaps testing unit testing in particular is something that you want to motivate yourself to do where it reinforces the fact you are already doing it perhaps it will answer a couple of questions that are unclear a couple of doubts in your mind it may also provide you with a couple of insights in terms of history technique and points to make to other people people are often find themselves in discussions technical discussions about practices where they find themselves trying to explain to somebody else who's coming from a very different perspective why this stuff might make sense so hopefully I'll hit at least a few of those points so I'm Kevin Henney and I've got a stalking address and a spamming address there I've written some books and these relevant yeah the one on the rights relevant 97 things every programmer should know this is a crowdsourced and open source but very interesting thing is when I put out a call for submissions I got a I got a ridiculous number on testing there's a very high proportion of submissions on testing I couldn't take them all but it was it was interesting how that came out I'll refer to one or two of them a little bit later now this is a this is an interesting tweet I got from Kirk Papadine yeah he was one of the contributors to 97 things Kirk is a Java performance specialist Canadian living in Hungary and he made an observation one day he tweeted this one at me functionality is an asset code is the liability now I found this absolutely fascinating and provocative because I spent a better part of my career convincing people that code is actually an asset but he's right he's dead right because what people want is the functionality the code is somewhat annoying the fact that there has to be code but what he's saying is code is the liability which means not that you don't care about it but that you care about it very much because if it's a liability you want less of it you don't want loads of rubbish lying around you don't want technical debt