I think before we invest, we need to have a good idea about the project we are going to invest in. If the projector is bad then we will have loss and if the projector is good then we have the possibility of profit so we have to look carefully before investing.
Yes, but before looking at a good project we also need to understand what investment is as a whole, lest we invest just because people follow suit. We must equip ourselves with basic knowledge, otherwise it will lead us astray. Not only in terms of losses but also more severe things such as fraud and the like. Basic knowledge is needed to prevent that.