You can start with nothing with bitcoin just you only have internet or personal computer cause you can join bounties here in forum and be a bounty hunter through that you can gain money and invest it in trading to have another profit , trading is good especially if you are strategical person and good in analysis.
No doubt newbie can join these forums and can make without any investments, but they will have to know that making money in this forum Is not easy. They will have to work hard and give as much time as they can. They will have to upgrade their rank and also need some projects. It will take long time. Then they will be able to make some money in these forums.