This thesis describes an interdisciplinary scientific study regarding systematic problems involving complexity  such as complex systems. However, this is not a regular physical article because this solution is not accomplished by conventional physics based on determinism but indeterminism. Please do not misunderstand. (Remark: this study was completed in 2016   ). Perhaps determinists will not be pleased with the solution provided herein. There is no problem occurred in it because of no relation with determinists.
Meanwhile, in modern science, there is a high separating wall created by physicists between determinism and non-determinism   like physics and non-physics. In particular, this study was accomplished by other systematic dynamic solutions based on non-determinism (indeterminism) (see Table 1). It is more precise and easier to apply compared with chaos theory  in mathematics based on determinism. Hence, it is similar to a second solution for complexity. Therefore, many non-physicists, including economists, ecologists, and engineers will greatly welcome another solution. Moreover, they have no reason to object to it, as well as, they have no duty to follow determinism. Nevertheless, other physicists do not welcome it because it is different from conventional physics and it is not relevant to determinism. However, there are no problems, if a physicist does not want it, he/she will just continue using their old chaos theory. (Remark: If they are not welcome, it will be published in non-physical journals; we need a rational judgement.)
Generally, modern science has treated all physical problems as logical problems using the chaos theory as derived from algebraic statistics according to determinism. Nonlinear dynamic problems involving complexity and nonlinearity in indeterminism have been solved algebraically by the statistical program SPSS for a long time. Nevertheless, if complexity is a systematic problem but logical problem, it should be solved by systems analysis theory in other science including the commercial program MATLAB through mathematical modeling. And, it must be solved in the following sequence: mathematical modeling—computer simulation—verification—return. (Remark: Systems cannot be solved algebraically.)
Consequently, this study will prove that complexity is characterized as a systematic problem. It proves that complexity is a solvable problem based on the third science. Complexity is not a difficult problem to non-physicists. To help readers understand, this study provides three cases studies: 1) Adam Smith’s invisible hand; 2) Logistic curve; 3) Tomas Kuhn’s innovation theory in non-physics.
2. Materials and Methods
2.1. Scientific Background
Generally, we can be divided physical phenomena into logical static problems and systematic dynamic problems. For instance, the food chain is a representative
Table 1. Summary of present solution and future solution in third science.
closed loop system with invisible feedback elements. However, a serious problem is that modern science treats systematic problems such as the food chain as a nonlinear dynamic problem and attempts to solve it with regressive solution in statistics such as chaos theory. It seems not a reasonable practice. Instead, this study proposes a novel systematic solution as shown in Table 1 and refers to application example in Appendix.
Meanwhile, we can classify systematic problems such as food chains, stock markets, and global weather as shown in Figures 1(a)-(c) and it can always solve such feedback systems with systems analysis theory (control theory)  . Unfortunately, many scientists except control engineers are not familiar with the theory, further, it is a difficult and complex theory. Instead, we must utilize MATLAB  to solve the problems without any preliminary knowledge. Thus, non-physicists have no difficulty to solve it.
However, we need to understand the basic concept in the figure. For example, Figure 1(a) is an open loop system and logical problem. Hence, it does not need to be discussed. However, Figure 1(b) and Figure 1(c) are closed loop systems such as food chains or stock markets including other nonlinear systems; these should be solved by dynamic systems analysis theory because they have [an irreversibility] and cannot be solved inverse between input and output and re not proportional to each other. (Remark: This problem was talked by chemist-physicist Prigogine in his book, The End of Certainty  . He said that modern science has not yet solved the irreversibility in determinism.) Accordingly, systematic dynamic problems that appear in science it must be solved the computer through mathematical modelling.
2.2. Mathematical Process and Simulation
(Modeling): If someone who wants to solve a systematic problem, he/she should build a model system as follows. For instance, given a seller’s positive entropy  G(s) and buyer’s negative entropy H(s) in a market, similar to the predator-prey relationship in the food chain in Figure 1(b), the total output entropy converges to equilibrium by self-control based on the law of energy conservation such as the law of supply and demand in Appendix. Similarly, climate change, turbulence in nature, organisms in ecosystems, or any other phenomena with
(a) (b) (c)
Figure 1. Where, [s] is the Laplace operator, the positive entropy is Q(s), the reverse entropy is H(s), and every feedback system’s transfer function is illustrated for the cases of (a) is H(s) = 0, (b) is 0 < H(s) < 1, and (c) is H(s) = 1.
entropy share the same algorithm can be presented as following; output equation y(t) = transfer function F(s) × input equation u(t).
where [s] is the Laplace operator; G(s) and H(s) are the transfer functions of the system; Y(s) is the output; and U(s) is the input source. If feedback element H(s) = 0, it is an open loop system. If H(s) is not zero, the basic transfer function Equation (2) is the second-order solution of formula as below  .
where β is the damping factor and ω is the periodical variable. Then, the transformed reversible Laplace transform can be given by y(t)  ,
where t is time; A, B, W, and φ are variable constants; and β is the damping factor. Equation (3) is nonlinear as a time series function and is an exponential and periodic function that can never be solved inversely. To build a mathematical model system, the variables in Equation (2) must be determined repeatedly.
(Simulation): The computer software MATLAB, as shown in Figure 2(a), is convenient, easy to use, and accurate, similar to the analog simulator in Figure 2(b). Assuming the input sets the systems transfer function, readers can observe the basic response behavior on the monitor, as shown in Figure 2(c). Various behaviors were observed, including initial phenomena, periodic sine curves, decreasing periodicity, and irregularity. For further details, watch the video clip provided in Ref.  . (Remark: Determinists in modern science are asked to deal and analyze systematic problems with microscopic and dynamic characteristics in a macroscopic and static viewpoint, but it is not reasonable. Thus, there is no reason for non-physics to follow it.)
Figure 2. (a) Digital simulator MATLAB Simulink; set the transfer function into input screen; (b) Analog simulator designed be electrotype; (c) The response output; basic and random function (brown line is input, blue line is output).
3. Results: Application Case Studies
These applications as below cannot be not perfectly solved by logical static solution such as the old chaos theory. However, it can be easily solved by systematic dynamic solution through mathematical modeling and MATLAB, to provide innovative scientific results.
3.1. Adam Smith’s Invisible Hand and Random Walk
Adam Smith’s Invisible Hand  is a familiar with economists, likewise, the law of supply and demand in Appendix. If they have a preliminary knowledge regarding systems analytic theory in engineering, they can solve this problem. (Modeling): If the utility of the supplier and demander in a market or predator-prey correlation is a microscopic dynamic problem in real time, moreover, it is a closed-loop feedback system, as shown in Figure 1(b), it will be converged to an equilibrium state automatically. (Simulation): In this case, it was assumed that the transfer function F(s) of the stock market is the same as the one provided above. (Verification): If the stock price information from external fluctuates continuously, the output of the daily stock price is random walk  , therefore, it is endlessly changed and converges to steady price by self-controlling. In this case, no one can predict the stock price absolutely. Consequently, the invisible hand is not a logical problem but a systematic problem. Accordingly, economists need not follow up determinism and chaos theory, it must be solved by systematic solution based on a third science.
3.2. Logistic Curve in Ecology
The second case is the established logistic curve  in ecology, which was devised by the mathematician Verhulst, as shown in Figure 3(a). He asserted that population growth follows a sigmoid curve given by the following equation:
which is derived from algebraic statistics based on determinism. (Modeling): This is not a logical problem but a systematic one similar to type (c) in Figure 1. If the feed volume is constant, its correlation can be described by the following transfer function  ,
Figure 3. (a) Logistic sigmoid curve; (b) Simulation result ; (c) Science innovation timing chart; .
which is derived from Equation (2). (Simulation): we can obtain the basic response function of is (where ω is constant), as shown in Figure 3(b), which has a periodic function within the sine curve. (Verification): Figure 3(a) and Figure 3(b) are equivalent because is is dimensionless and we can obtain same sigmoid curve. Hence, this logistic curve theory is not a logical problem but a systematic problem. If the mathematician has known the systematic solution in that time, he can solve this problem perfectly.
3.3. Kuhn’s Innovation Theory
Kuhn’s innovation theory  is a famous philosophical principle well-established in modern science. However, it is similar to the heliocentric theory developed in the Middle Ages. The scientific revolution encountered extreme opposition when it was first proposed, but it has led to a paradigm shift, with the theory now widely accepted. Finally, it has arrived at a saturated state as the normal sciences. Therefore, it can be described using the following scheme: [scientific revolution—paradigm shift—normal science]. (Modeling) Here, the correlation can be defined as a time series function as Equation (2) assuming a damping factor of 1 (critical damping state) with an output of 
and an original equation of is (where x is constant), as shown in Figure 3(c). This equation is a gradually increases and eventually reaches saturation. It is very significant the result for his assertion. It is like invention (innovation)—paradigm shift—saturation state (normal science). (Verification): As a practical case, mobile technology developed slowly for 150 years with the following sequence: invention—paradigm shift—normal science. Those disagreeing with the result are encouraged to perform their own simulation with MATLAB directly. However, there are several scientific revolutions, including the steam engine, gun powder, fertilizer, semiconductors, internet, and automobiles whose utility slowly increased and converged into a saturated state, and then further into a normal state, as shown in Figure 3(c). Hence, Kuhn’s theory is not a logical problem but a systematic problem. (Remark; if the Kuhn has known the systematic dynamic solution as mentions above, he can successfully solve this problem.)
Generally, determinists have solved several systematic problems including nonlinearity in indeterminism by algebraic statistics based on computer; it is a common sense. However, determinists, as well as, other scientists do not consider the systematic problem as a closed loop system as shown in Figure 1(b), which means that they are unfamiliar with systems analysis theory according to determinism. This will be serious problem to physicists but non-physicists have no problems. Rather, they welcome it because it is more innovative compared with chaos theory in determinism, hence, they have no reason to object to this advanced solution. Therefore, we must break down the high wall between determinism and indeterminism. Accordingly, the novel solution will contribute to the advancement of science and can explain numerous long-standing problems involving complexity in modern science.
For instance, the famous Lorenz’s butterfly effect  including stranger-attractor is a representative systematic problem, if readers understand the solution, he/she can solve it using MATLAB. Likewise, non-physicists can solve long-standing unsolved problems in diverse fields such as macroeconomic problems or food chains in ecology, quantum mechanics in nonlinear dynamics, and AI algorithms in engineering. Biomedical sciences and space industrial sciences can apply this approach to solve related complex problems. In addition, it can be applied to quantum computing as well as soft scientific areas that include advanced military, political, social, and trading simulations.
This study presents a new systematic solution based on indeterminism accomplished by other scientific principles such as dynamic systems analysis theory based on a third science (indeterminism), for the first time, and with the support of MATLAB. In particular, this study encourages physicists to study novel systematic solutions and apply it to their discipline because it is more precise and easier to use than the old chaos theory. Hence, it represents a second solution for complexity. Complexity is a solvable problem based on this third science. Therefore, our research will significantly contribute to the development of modern science.
Authors are grateful to research center in Eho Technical Co. for research.
Appendix: Application Example
To help physicists and non-physicists understanding, this section is provided a representative example as the law of supply and demand. We can replace the graph about economic theory as shown in Figure 4(a) with a block-diagram as shown in Figure 4(b). As matter of a fact, if supplier continues to increase the products Q(s) in the figure, demander decreases to buy gradually and the price decreases. Otherwise, if demander increases to buy and the price increases gradually, and then, the market price converges to steady price as shown in Figure 4(a). In this case, the transaction with time delay d is not completed instantaneous at once. Hence, we can define the microscopic dynamic systematic problems as above as a closed loop feedback system as shown in Figure 4(b). In addition, we can always solve the problems using systems analysis theory in other science.
Figure 4. (a) A graph of law of supply and demand without dimension; (b) Equivalent closed loop systems with feedback element.