Final answer:
The statement is false; humans can maintain about 150 stable relationships, as per Dunbar's number, not just 50.
Step-by-step explanation:
The statement about the maximum number of meaningful relationships one can have at a time suggesting it is 50 is false. This number originates from the theory known as Dunbar's number, which proposes that humans can maintain approximately 150 stable social relationships at a time. It's important to note that Dunbar's number is not a strict limit but rather a suggested average based on cognitive limitations and time constraints.