"Hopes" for successful winged flight had been
thought about for a long, long time.
Developing dreamy hopes for development of a dream/hope into anything close to a reality that can be credibly predicted to occur in a specific time frame such as 5 years or maybe five decades or even farther out will take more than Internet gossip and examples of total failure and dreams of the past.
Suggest that anyone interested in how two self taught "critical thinking" gentleman dedicated to serious development of an idea from a "hope" into a successful reality went about it, read the book:
The Wright Brothers by David McCullough
The Wright Brothers | Book by David McCullough | Official Publisher Page | Simon & Schuster