Our senses tell us of the world around us, the world in which we live. But how can we be sure that the information delivered by our senses is complete? What if other information lies outside our perception, realities we cannot comprehend because nature or its Creator have not equipped us to detect those realities?
My example of the singing refrigerator hints at such a possibility. My sister and I could hear the sounds the refrigerator made. Other family members could not hear them and refused to believe that such sounds existed. Human ears vary slightly regarding the pitches they can detect and report to the brain. Such a difference in hearing appears to be only the tip of the iceberg.
In the 1860s, at the height of the Victorian Era, scientists began to detect some sort of radiation associated with electricity and magnetism. Twenty years later, further research had provided a better understanding of that radiation. What we humans know as visible light—red, green, blue, and white—is only part of the spectrum of light waves in the world. Other wavelengths are longer or shorter than the wavelengths our eyes witness. Radio waves and microwaves had been found in the latter part of the nineteenth centuries; X-rays would not be discovered until 1895. Not only did science unveil the existence of these waves that have always been there; inventors swiftly found ways to harness this knowledge for the benefit of humankind.
Imagine telling a scientist from the year 1850 that in our time invisible waves are used to allow people to communicate across thousands of miles, to speak to one another and hear immediate replies. Imagine describing the way the same invisible waves convey not only sounds but also images—even moving pictures—all around the earth. Imagine adding to that fantastic tale the detail that bones and internal organs of a person can be observed without removing that person’s skin. These innovations would surely be as marvelous and unexpected as motorcars, airplanes, and other modern tools that we take for granted today.
A few people claim to believe that the Earth is flat, insisting that evidence of a spherical world is misinformation distributed to fool the general public. Perhaps somewhere a few people also insist that all light is visible light. They might claim that reports of radio waves and microwaves and X-rays are a trick and that such things do not exist. Cell phones, garage door openers, TV remotes, and medical and dental X-rays are all part of the trickery, clever illusions to persuade us to believe in unseen waves that constantly surround us and pass through us.
Because science stumbled upon these unseen versions of light, we must accept the possibility that other real things exist in the world, unobserved because we have not yet found a way to look for them. Meanwhile, further studies of the observable world bring us new and amazing bits of news. For everything we consider solid and reliable—the red apple in the refrigerator, and the square table in the middle of the room, and my foot, and my shoe, and the ant crawling on the floor next to my shoe—all these things are formed from an unimaginably large number of unimaginably tiny pieces. And those pieces follow rules that are far different from the rules of geometry and physics we have learned about the world our senses observe. Even the light that enables us to see those things follows a different set of rules. This is where things start becoming truly weird. J.