This brief website deals with the process of thinking both from biological point of view (plasticity of neurons, emotional centers) and from point of view of mathematical description of problems and their properties.

Let's start with the most important point which is so-called subjectivity principle. It is a universaly valid natural pattern saying this:
Every problem is either solvable at given moment or important only seemingly at that moment.
This natural law is valid with mathematical precision for everybody at any moment.

There are two reasons for the validity: first reason is that internal values of man (feelings, emotional state) are superior to everything else. For example when we get a new car, a house, success at work, a nice relationship, good health or anything else that we value high - what we get in reality is satisfaction with the new car, pleasure from the new house, satisfaction from the work success, nice feelings from the interpersonal relationship, good mood based on the good health, generally an internal state triggered by an external value. Shortly all the external successes or failures are received in form of biochemical activity of our emotional centres.

The second reason is that the neurons bringing signals to emotional centres (thus activating our feelings) possess the phenomenon of plasticity. Plasticity of neurons is capability of neurons, their projections (dendrits, axons) and connections (synapses) to grow up, to strengthen, to weaken and to disappear - all as consequence of the process of thinking. Plasticity of neurons and synapses is also the essence of the long-term memory.

But what does it mean exactly that the subjectivity principle is "universaly valid", "natural pattern", what is it "problem", what does it mean "solvable", "important" and "important only seemingly"? And isn't there a contradiction when our life or health is in danger? Hopefully this introduction makes you little curious or carping so that you will look more at this brief website, think about it and create your own opinion. Thank you in advance for any comments, discrepancies or contraditions send to the email listed in the section author.