In as much as many projects come promising heaven and earth, promising to succeed and all that, I can honestly tell you that not all have the seriousness of succeeding in them, some are just after the money they will gather/collect during pre sale or IEO, whichever form of fundraising they go for, after they've collect this money, in order not to make it look like scam, they pretend they are working and developing their promised technology, but actually, they just want the project to die naturally so they can go and enjoy their left over money without anyone disturbing or calling them scammers.