Writing bad code is often the first step in writing novel good code. It's the 'does this library do what it says it does' kind of exploration. Can I do this in HTML 5?
First principles works fine on CRUD apps, less so new concepts. If you going to toss 90% of your code as useless then an extra 20% is simply wasted time. I am going to try the same thing in 5 library's to see which one I like directly means tossing 80% of that effort away.
I completely disagree. It's much less useful for "CRUD apps" because "CRUD apps" are an obvious and known commodity. New and novel concepts are much less broadly intuitive, and are precisely the kinds of things that demand extra rigor even if you're going to end up throwing it all away. None of it is wasted effort when you're considering, and admitting, that a big chunk of the work is exploration.
Keeping documented feature branches of all those versions you tried before landing on one is an absolutely critical result of any exploration process, as well as some aggregation of information and context in a central place that points to and describes those various versions and your final outcome. This helps you keep from repeating mistakes, it provides context to you and others in the future for why things are the way they are, and it provides an archive of workable variations that you can quickly migrate to in the event your "final answer" turns out to be wrong.
I haven't written a "CRUD app" since 2008, and since 2010 nearly all my work and the work of my teams has been in greenfield development (in some cases literally inventing new never before seen things). I see it time and time again. We move much, much slower as individuals and as a group when we take shortcuts under the auspices of time-pressure and don't take the time to be thorough even in prototyping.
So we spend the same 100 hours hacking away to create a dumpster filled with spaghetti as fast as possible or we spend 100 hours designing, building, implementing with intention, and every. single. time.... the latter process actually gets us further toward prototype, product, and/or market validation goals. The former process ensures that we have 0% of anything that is useful no matter what the results of the exercise are. The latter process ensures that we can legitimately iterate on what we've done based on the results of the exercise.
Iterating on a trash heap is extremely expensive, not a way to run faster.
If your working from an existing code base then it's not green field development. It literally means development that lacks constraints imposed by prior work. For example sticking with an exiting language, OS, compiler, etc. is a constraint.
So, clearly we are talking about something different.
I can't tell what you're actually replying to in my comment.
I'm talking specifically about using a different language, a different OS, a different deployment pipeline, new testing methods, new security constructs, new infrastructure orchestration methods, entirely new architectural paradigms, etc. etc. etc.
In fact using that as an example. Say it's a new programming language. You will absolutely waste more time dealing with the pain of doing things epically wrong, fighting with your tools, doing really crappy kinds of log-print debugging, etc. than you would taking 10-20% of your time up front learning some normal idioms and conventions for the language and learning to use richer tracing and debug tools to find problems and to instrument your prototypes.
Just because you sat down and started coding and debugging without having any idea what you were doing, but at least you were "doing", emphatically does not mean you are getting to a goal of minimally viable test, or prototype, or product faster. It just means you started typing sooner.
I still think we are talking about different things. If you want to know how much battery charge is lost when a cellphone get's a GPS lock that's a very focused requirement. Trying to also make your test code useful in the long term is vast and unnecessary constraint. It's the stage where you want to understand the problem.
"Wait, I need a Mac to write iOS code, ouch."
Ideally you should be producing far more research than code. Your talking logging, and I am talking the "H" part of "Hello, world."
PS: If you can get away without writing code so much the better.
First principles works fine on CRUD apps, less so new concepts. If you going to toss 90% of your code as useless then an extra 20% is simply wasted time. I am going to try the same thing in 5 library's to see which one I like directly means tossing 80% of that effort away.