...all this technical stuff is not necessary.
...all this gibberish...I'm not against gaining knowledge, I'm against gaining unnecessary knowledge.
This is what dumb people tend to say. Whenever you hear one of the following you can give 30 to 1 odds that the person saying it isn't a very intelligent individual and you will come out ahead in your betting:
-someone disparaging the usefulness of science
-the term "technical mumbo jumbo"
-anything indicating they universally hate to learn or have a closed mind
-anyone downplaying the power of knowledge
On a side note, you say you are against "unnecessary knowledge", but how would you always know what knowledge would be useless and unnecessary when you don't yet have that knowledge? There are cases, often in fact, where the usefulness of knowledge isn't evident until you have that knowledge. And in any case knowledge is never a bad thing, ever. It can have anywhere from almost no benefit to having enormous benefit but there is never a drawback or negative to having it. Learn all you can and then use from that what you find valuable and useful and don't use what you don't find to be necessary or useful because now you actually know which is which. The only negative in regards to knowledge is not having it. Lots of bad things come from not having knowledge but none come from having it.
On another side note, it also seems that a certain segment of dumb people like to attack science, and knowledge, simply because they are unable to understand it or obtain it. It is a coping method. Instead of accepting that they are deficient in the intelligence department, and working to improve that, it is easier [on the ego] for some to choose to attack science and knowledge pretend that is has little or no benefit so they don't have to admit to themselves that they just aren't capable of understanding and might be missing out on something good. It is human nature for it to be incredibly difficult to admit to and accept our shortcomings at times. Some real introspection and soul searching can prove to be insightful in this respect when people are truly ready to be honest with themselves.
The good news is that our intelligence and level of knowledge are both largely regulated by our desire to learn and our willingness to put in the effort that learning requires so we have the ability to change things if we choose.