Despite the immense voids and vast distances that separate stars, our cosmic neighborhood remains a dynamic stage where emerging phenomena consistently challenge our present comprehension. One of the most intriguing enigmas involves the appearance of objects originating from distant stellar systems. We provide an introduction to the realm of "interstellar interlopers", focusing on the first two documented sizable visitors: 1I/'Oumuamua and 2I/Borisov. Additionally, we explore the nature of objects that seem to have originated in other solar nebulae but, in reality, belong to our own planetary system—dubbed "interstellar impostors". We explain why hyperbolic meteors have been systematically categorized as measurement errors. Lastly, we raise questions about the contentious assertions concerning the alleged interstellar meteors: IM1 and IM2. By pursuing these inquiries, our objective is to resolve the following paradox: given the growing body of evidence indicating the presence of an interstellar visiting population, why have authentic extrasolar meteorites eluded our discovery?