I cannot predict or provide accurate information about a specific event in the future, such as the last day of the world on February 14th, 2046. It is impossible to accurately predict such an event since it is beyond human knowledge and scientific capability.
However, I can tell you that there is currently no scientific evidence or credible prediction that suggests that the world will end on February 14th, 2046, or any other specific date. Many theories and predictions have been made about the end of the world throughout history, but none of them have come to fruition.
It is essential to remember that the world is a complex and dynamic system, and various factors can impact its future. Therefore, it is important to focus on understanding and mitigating potential risks, such as climate change and other environmental issues, rather than predicting the end of the world.