The most popular reason for projects failure is inability to meet their soft cap. This reason has been well pronounced in the bearish season and some projects decided to suspend their ICO because of the nature of the market. Neuroneum needs to be very spontaneous and aggressive in meeting their targets
Even before softcap, the major reason for failure is the missing active participation of the team in social channels and also in marketing.
I think before that you need to have a team that is able to execute and deliver. I think the community will automatically have things to talk about as the project progresses don't you think?