It is certainly possible that another theory of not involving "design" might be proposed. In any case, "design" as a theory is vacuous. There is no proposed mechanism and no criteria of falsifiability. To say that the presently accepted theory of evolution is false, therefore "design," get's us nowhere. If you disprove the theory of evolution all you have is a disproved theory. Then what?
There is evidence of design everywhere. So much so that in order to escape the logical conclusion Dawkin's had to propose Aliens designed humans..... but of course the aliens were not designed..... sigh.....
"University of Chicago professor Jerry Coyne, in his book
Why Evolution is True, wrote: “If anything is true about nature, it is that plants and animals
seem intricately and almost perfectly designed for living their lives” (2009, p. 1, emp. added). He further stated, “Nature resembles a well-oiled machine, with every species an intricate cog or gear” (p. 1). On page three of the same book, he wrote: “The more one learns about plants and animals, the more one marvels at how well their designs fit their ways of life.” Atheist Michael Shermer, in his book
Why Darwin Matters, stated: “The design inference comes naturally. The reason people think that a Designer created the world is because it
looks designed” (2006, p. 65, ital. in orig.)."
“Biology is the study of complicated things that give the appearance of having been designed for a purpose.” {Richard Dawkins,
The Blind Watchmaker, 1996, p. 1}
But don't believe your lying eyes people.... Instead believe the lies that the design you see is just an illusion.....
"The irony of the situation is that each of these writers contends that such design is a product of naturalistic, mindless factors. But their telling statements underscore the obvious conclusion. If an Intelligent Designer really did create the world, what would it look like? Answer: Exactly like the one we have!"
it would appear designed, exactly as it appears to be......
The Bible speaks of people who see evidence that God created but still reject the designer/creator: “For the invisible things of him from the creation of the world are clearly seen, being understood by the things that are made,
even his eternal power and Godhead; so that they are without excuse: Because that, when they knew God, they glorified
him not as God, neither were thankful; but became vain in their imaginations, and their foolish heart was darkened. Professing themselves to be wise, they became fools. (Romans 1:20-22)
Michel Behe reminds us: “…it's important to keep in mind that it is the profound appearance of design in life that everyone is laboring to explain, not the appearance of natural selection or the appearance of self-organization.” {Design for Living By Michael J. Behe Published: February 7, 2005, New York Times Op Ed.}