Is sector-specific ETF trading really just chasing? My thoughts on $BOTZ.

Been looking at $BOTZ again, it's up to 36.91 today. Seems like the robotics and AI sector is still hot, but honestly, I'm finding myself wondering if these highly specific sector ETFs are just glorified chasing. The day range for $BOTZ, for instance, has been 36.585–37; it's moving, sure, but is it really alpha generation or just riding the general tech wave with extra fees? It feels like sometimes these niche plays, while promising on paper, lack the broader diversification to weather unexpected shifts, and then you're just left holding a bag when the narrative changes. \n\nOn the other hand, something like $IDR at 30.76 today, down slightly, presents a different scenario. A broader fund, less hype-driven. Or even just FX, like $ZARUSD hanging around 0.06108885. It just feels less emotionally charged. I understand the appeal of targeting high-growth areas, but often it feels like you're buying into the story rather than fundamental value or robust technicals. \n\nAm I just being cynical? Is there a valid argument for consistently focusing on these hyper-specific sector plays, especially after they've already had significant runs? \n\nPush back. Tell me why I'm wrong.