Some years ago I was busy with projects that required a lot of travelling but I also needed to stay up-to-date with latest product features and technologies. When a new operating system was released a colleague asked how I could do that – without having time for attending trainings. Without giving that too much thought, and having my personal test lab in mind, I replied:
I think I always try to solve some problem!
tl;dr – you can skip the rest as this has summed it all up.
About one year ago I ‘promised’ to write about education, based on my experiences as a student and as a lecturer or trainer. I haven’t done so far – as I am not sure if my simplistic theory can be generalized.
There are two very different modes of learning that I enjoy and consider effective:
- Trying to solve some arbitrary problem that matters to me (or a client) and starting to explore the space of knowledge from that angle.
- Indulging in so-called theory seemingly total unrelated to any practical problem to be solved.
Mode 2 was what I tried to convey in my post about the positive effects of reading theoretical physics textbooks in the morning. The same goes for cryptography.
I neither need advanced theoretical physics when doing calculations for heat pump systems, nor do I need the underlying math and computer science when tweaking digital certificates. When I close the theory books, I am in mode 1.
In the last weeks that mode 1 made me follow a rather steep learning curve with respect to database servers and SQL scripts. I am sure I have made any possible stupid mistake when exploring all the options. I successfully killed performance by too much nested sub-queries and it took me some time to recognize that the referral to the row before is not as straight-forward as in a spreadsheet program. One could argue that a class on database programming might have been more effective here, and I cannot prove otherwise. But most important for me was: I finally achieved what I wanted and it was pure joy all the way. I am a happy dilettante perhaps.
I might read a theoretical book on data structures and algorithms someday and let it merge with my DIY tinkering experience in my subconsciousness – as this how I think those two modes work together.
As for class-room learning and training, or generally learning with or from others, I like those ways best that cater to my two modes:
I believe that highly theoretical subjects are suited best for traditional class-room settings. You cannot google the foundations of some discipline as such foundations are not a collection of facts (each of them to be googled) but a network of interweaving concepts – you have to work with some textbook or learn from somebody who lays out that network before you in a way that allows for grasping the structure – the big picture and the details. This type of initial training also prepares you for future theoretical self-study. I still praise lectures in theoretical physics and math I attended 25 years ago to the skies.
And then there is the lecturer speaking to mode 2: The seasoned expert who talks ‘noted from the field’. The most enjoyable lecture in my degree completed last year was a geothermal energy class – given by a university professor who was also the owner of an engineering consultancy doing such projects. He introduced the theory in passing but he talked about the pitfalls that you would not expect from learning about best practices and standards.
I look back on my formal education(s) with delight as most of the lectures, labs, or projects were appealing to either mode 1 or mode 2. In contrast to most colleagues I loved the math-y theory. In projects on the other hand I had ample freedom to play with stuff – devices, software, technology – and to hone practical skills, fortunately without much supervision. In retrospect, the universities’ most important role with respect to the latter was to provide the infrastructure. By infrastructure I mean expensive equipment – such as the pulsed UV lasers I once played with, or contacts to external ‘clients’ that you would not have had a chance to get in touch otherwise. Two years ago I did the simulations part of a students’ group project, which was ‘ordered’ by the operator of a wind farm. I brought the programming skills to the table – as this was not an IT degree program – but I was able to apply them to a new context and learn about the details of wind power.
In IT security I have always enjoyed the informal exchange of stories from the trenches with other experienced professionals – this includes participation in related forums. Besides it fosters the community spirit, and there is no need to do content-less ‘networking’ of any other sort. I have just a few days of formal education in IT.
But I believe that your mileage may vary. I applied my preferences to my teaching, that is: explaining theory in – probably too much – depth and then jumping onto any odd question asked by somebody and trying something out immediately. I was literally oscillating between the flipchart and the computer with my virtual machines – I had been compared to a particle in quantum mechanics whose exact location is unknown because of that. I am hardly able to keep to my own agenda even if I had been given any freedom whatsoever to design a lecture or training and to write every slide from scratch. And I look back in horror on delivering trainings (as an employed consultant) based on standardized slides not to be changed. I think I was not the best teacher for students and clients who expected well organized trainings – but I know that experts enjoyed our jam sessions formerly called workshops.
When I embarked on another degree program myself three years ago, I stopped doing any formal teaching myself – before I had given a lecture on Public Key Infrastructure for some years, in a master’s degree program in IT security. Having completed my degree in renewable energy last year I figured that I was done now with any formal learning. So far, I feel that I don’t miss out on anything, and I stay away from related job offerings – even if ‘prestigious’.
In summary, I believe in a combination of pure, hard theory, not to be watered down, and not necessarily to be made more playful – combined with learning most intuitively and in an unguided fashion from other masters of the field and from your own experiments. This is playful no matter how often you bang your head against the wall when trying to solve a puzzle.