Why Solana is risky?

I'm curious, could you elaborate on why Solana is considered risky? It seems to have quite a following in the crypto space, but I've heard some concerns about its stability and scalability. Could you break down some of the main risks associated with investing in Solana? Is it prone to frequent outages or attacks? How does its technology stack up against competitors like Ethereum? And lastly, what's your opinion on the long-term sustainability of Solana given its current challenges? I'd really appreciate your insights on this matter.