Who does “them” refer to in the title “What Makes Them Faster and Smarter”?

Who does “them” refer to in the title “What Makes Them Faster and Smarter”?
For example:

• Humans (brain performance, learning, productivity)
• Athletes or sports players
• Animals (like cheetahs, dolphins, dogs, etc.)
• Technology (AI, computers, smartphones, processors)
• Cars or machines
• Students or professionals
• Robots or automation systems

Once you confirm the subject (and optionally the target audience or niche), I’ll write a fully SEO-optimized ~1500-word article with:

• Keyword-rich headings (H1–H4)
• Engaging introduction & conclusion
• Internal-link friendly structure
• Readable, authoritative tone
• Optimized for Google rankings

Just tell me the focus 👍