I must admit to not being sure. Certainly, many individuals believe, deeply, in the reality of past, present and future ACIM. They hold in my view respectable and conscientious beliefs. But as for my part, many plausible considerations exist which weaken, in cases seriously, the credibility of miracles.
So I remain unsure. But what about the opposite? How would I answer the opposite question, i.e. did miracles not occur? Have there not been, are there not now, and will there not be, miracles?
On that question, I am firmly convinced we can not rule out the possibility of miracles. Despite the credible considerations which cast doubt on miracles, those considerations do not cast sufficient doubt. We must remain open to the possible existence of miracles.
Any why is that? For a number of reasons, and they do not necessarily follow conventional thinking.
Miracles do not need to violate the natural laws
Miracles can be, and often are, defined as occurrences where a spiritual or transcendental power (mainly a God) supersedes, suspends or violates a natural law. That would represent a common characterization, and one that reflects a long and rich record of scriptural accounts, theological reflection and common belief.
And that is fine.
I would argue, however, that this traditional characterization excludes phenomena which can properly qualify as miracles.
Consider just about any modern technology. That technology, be it electricity, automobiles, computers, antibiotics, mobile phones, jet planes, even something as mundane as a refrigerator, all would appear miracle-like to individuals living at the time of Abraham, or Christ, or Buddha, or Mohammed.
Looking forward, can we not envision future capabilities that would appear miracle-like today, even against our current technology? I would say certainly. Consider mind-to-mind linkage; consider direct activation of cellular repair; consider harnessing capabilities of extra-spatial dimensions, consider even circular information loops in time. We certainly should be able to envision them; they arise often in science fiction. And we can conceive that such capabilities could fall within the laws of nature, and even at some point the capabilities of our technology.