Can black holes be annihilated, despite their capacity to annihilate everything?

To set the stage, we ignite the world's complete nuclear arsenal around our diminutive black hole in a cataclysmic display of destruction. Black holes, by nature, engulf anything that ventures past their event horizon, consuming both matter and energy. Given Einstein's iconic equation, E = mc², all the energy absorbed by a black hole amplifies its mass. As mass correlates directly with a black hole's size, detonating nuclear weapons near our tiny black hole inadvertently swells its size and mass.

Next, we ponder the use of antimatter. When matter and antimatter collide, they annihilate each other. So, what would transpire if we hurled a moon's worth of antimatter at our cosmic adversary? Unfortunately, when any object plunges into a black hole, be it composed of matter or antimatter, the black hole effectively erases its past characteristics. Black holes are solely concerned with gravity, which hinges on the total mass-energy of an entity. As a particle's mass is equivalent to that of its corresponding antiparticle, introducing an anti-moon to the equation has an analogous outcome – the black hole grows more massive.

This peculiar "identity-deleting" feature of black holes bears an intriguing similarity to elementary particles. Like an electron, which is defined by only three attributes – mass, spin, and charge – black holes, upon formation, are entirely delineated by these three parameters, disregarding their origin. In essence, a black hole becomes a simple particle in terms of description.

Now, if black holes can be likened to strange particles, could we vanquish them with their antiparticles? This leads us to the notion of an anti black hole. Just as particles and their antiparticles bear equivalent mass but opposite charge, an anti black hole should harbor the same mass and an opposing electric charge. What occurs when these entities collide? Regrettably, the electric charges merely combine and nullify each other, culminating in a newly formed black hole that is twice as massive but bereft of electric charge.

So, we venture further, pushing the boundaries of physics. We contemplate obliterating the black hole's event horizon. Despite the black hole's capability to carry spin and charge, it has inherent limitations. Excessive rotation or charge results in a curious phenomenon – the event horizon dissolves. In a simplified analogy, we typically envision black holes as concealing a singularity at their core – a mass so compressed with gravity that nothing, not even light, can escape. Crossing the event horizon marks the point of no return.

However, excessive rotation causes a repelling effect at the event horizon, as if the black hole were a spinning washing machine attempting to expel nearby objects. But this force can't overcome the overwhelming gravity of the black hole. If rotation or charge reaches an extreme, the event horizon vanishes, liberating objects from eternal imprisonment.

But breaking down the event horizon leaves the singularity intact. Objects would still succumb to its gravitational pull, resulting in a swift demise upon impact. Yet, the proximity to the singularity would no longer entail an inescapable prison. You could approach and withdraw as you pleased, essentially dismantling the black hole.

Theoretically, we could achieve this by overwhelming the black hole with excessive charge or angular momentum – surpassing its limits. However, whether this can be executed is the subject of intense debate among physicists. Consider a charged black hole, for instance. Similar charges repel each other, intensifying the repulsive force as more like charges accumulate. As we endeavor to overcharge the black hole with electrons, their electrostatic repulsion escalates. Yet, once we reach a critical point, the black hole resists further "overfeeding."

Now, with spin, the mechanism is analogous. Once the black hole reaches its spin limit, it becomes impervious to further accretion. However, some physicists have suggested a potential loophole – an optimal configuration of matter could theoretically surpass these constraints. But such a notion is met with skepticism, as it defies established principles.

There is a notable caveat, though. Disintegrating the event horizon would unveil a "naked singularity," devoid of the protective event horizon. This gives rise to an enigma, as a naked singularity could pose a profound dilemma for physics. Typically, a black hole's singularity is deemed to exist in the future of any object crossing its event horizon. Black holes exert such a warp on the fabric of spacetime that once you traverse the event horizon, space and time swap roles. Progressing inward means advancing toward the future – a trajectory with no possibility of turning back, analogous to time travel into the past.

If the event horizon vanished, the singularity would appear in plain sight. But what would we see? The unpredictable nature of singularities arises from their infinite gravity, which warps spacetime to an extreme extent, rendering conventional predictions futile. The breakdown of space and time entails an absence of reference points, dismantling predictability and causality. In this surreal domain, the emergence of anything, from mundane objects to entire solar systems, would be entirely random.

Yet, physicists conjecture that nature safeguards against the formation of naked singularities, enforcing the creation of event horizons to preclude the chaos of unbounded singularities. Such horizons are a fundamental component of the cosmos, maintaining order and the rules of physics as we understand them.

Ultimately, the safest method to destroy a black hole is to exercise patience. All black holes steadily emit minuscule particles, a phenomenon known as Hawking radiation. Over time, this process depletes their mass until they ultimately "evaporate," leaving no horizon and no naked singularity. The duration of this evaporation hinges on the black hole's mass. For our hypothetical speck-sized black hole, it would endure for approximately 10^44 years – an inconceivably protracted span, exceeding the current age of the universe by many orders of magnitude.

In conclusion, is it possible to annihilate a black hole? Yes, but the only safe method is to wait for the natural process of Hawking radiation to take its course.