They say that in Silicon Valley you only need ideas. You can get people to fund your ideas. That's how Silicon Valley does it. But not the entire world likes it. Getting your idea funded is a hard thing to do.
Investors will not but your ideas because fundamental mistakes are barely address. Take a look at this:
Business ideas should solve certain problems. If the idea is not pulled on a specific problem, the idea is more a mess. Getting to the pain of the consumer is an important aspect to the creation of strong reasoning to market a product.
Forget the words. In business words are nothing. Do not try to impress investors by using hype words like "better profits", "double market scale". Investors would ask you about the idea's strengths and weaknesses, how can you take over the market by the idea. Do not try to make exaggeration because in business truthfulness is a big matter.
Trim it down. Never think that you can get the market. Try to make specific niche, strategy and plans. You can cannot control the market at a blow. Never believe the idea that the market is an easy conquerable one. It is not yours for the making as a new idea.
Weak marketing. If you think you can strive in a market that does not have any competition, think again. Even if you think your idea is perfectly unique but the market is a unique area as well. Plan it out. You need to create the necessary strategy that will market your product to others. It is important that you know how to push the market to buy your idea and not the other way around.