Truth that cannot be reduced further
Everything is but a vibration of the quantum field. Including you. Described in its totality by the Schrodinger equation – a mathematics that explains all the vibrations in the universe. It is a computation of that equation in time. With a plank length as a pixel and a Planck time as a clocking frequency, one step after another. It tells us how any pixel will behave in the next Planck time.
Our brain is a computer made from this vibration. Akin to a Minecraft running within a Minecraft – a Turing complete system. Imagine it as a fractal structure within a fractal structure – computation within a computation. What does the brain compute? A Fourier transformation of the vibrations of the quantum fields. The result is a model we perceive as the world around us. A world model.
A universe computes a brain and a brain computes the universe.
The basic units of this world model are the qualia. Self and consciousness are also qualia-based models. We will never know anything but our own qualia. The underlying structure of the universe is absolutely inaccessible to us. It is all hidden behind the veil of perception. Only our translation and interpretation of it into the word model are accessible.
That is all there is. The truth that cannot be reduced any further. No matter what field you study, if you go deep enough and keep a wide enough context at the same time, you will find the underlying pattern.