The concept of time dilation, where time appears to slow down in certain situations, is a well-established phenomenon in physics. However, creating a black hole small enough to significantly affect time dilation is currently beyond our technological capabilities and understanding of black holes.
In general relativity, the theory describing gravity, time dilation occurs in the presence of strong gravitational fields. Black holes are objects with extremely strong gravitational fields, and near their event horizon (the boundary beyond which nothing can escape), time dilation becomes pronounced. Time would appear to slow down for an outside observer compared to a clock located closer to the black hole's event horizon.
To create a black hole small enough to observe significant time dilation, one would need to generate a black hole with a relatively small mass. However, the creation of black holes requires an enormous amount of mass and energy compression, far beyond current capabilities. In practical terms, it is not currently feasible to artificially create such a small black hole.
It's worth noting that the study of black holes and their properties is an active area of research in theoretical physics. Scientists continue to explore these fascinating objects, seeking to deepen our understanding of their nature and the effects they have on the fabric of space and time.