time travel has not been proven to be possible, and there are no known methods or technologies for achieving it. The concept of time travel remains speculative and largely confined to the realms of science fiction.
However, if we assume that time travel were possible in the future, it's important to consider potential reasons why it might not be used to cure diseases or prevent wars:
Limitations or consequences: Time travel could come with limitations or significant consequences that prevent its widespread and unrestricted use. It's possible that there are inherent risks or paradoxes associated with altering the past, and those who possess time travel technology might be cautious about making drastic changes.
Ethical considerations: The ethical implications of using time travel to alter historical events or manipulate the course of human history are complex. Intervening in the past to prevent wars or cure diseases could have unforeseen consequences, disrupt the fabric of society, or raise difficult moral questions about altering the free will of individuals.
Practical constraints: Even if time travel were possible, it might require immense resources, advanced technology, or a deep understanding of the nature of time. These limitations could restrict the availability and accessibility of time travel, making it infeasible for widespread use in solving societal issues.
Temporal paradoxes: Time travel often introduces paradoxes and logical inconsistencies, such as the grandfather paradox (where someone goes back in time and kills their own grandfather, preventing their own existence). The potential existence of such paradoxes might discourage the use of time travel or render it inherently unpredictable and dangerous.
It's important to remember that these considerations are speculative, as time travel remains in the realm of fiction and theoretical physics. Until such time as scientific breakthroughs occur, it is uncertain how time travel, if possible, would be utilized and what limitations or consequences it might entail.