A wise investor is the one who knows what's the next big thing, the new trend. From ICO to IEO when they both have their time to shine and almost new projects with this type are guaranteed success before it become to saturated and scammers overuse them. Right now, I think the DeFi is the next big thing, at least for now.
Wise investors are those who know where they are going. not the origin of investment because the benefits are large. but, they chose a safe investment place, and also high potential in the future. for now, consideration is needed in investment because we know that since the beginning of 2019, many investments have turned into scams.