Google ABMD and its stock price history. It is not a robotic company but rather it produces heart pumps. It was first listed in 1987. For 30 years it did not execute for shareholders till 2015-2017 upon FDA approval and their product which had changed massively through 30 years till they got to finish line.
You could have speculated with that stock too for 30 years and lost money or traded or whatever, much longer than TMDI perhaps. Many shareholders would have believed that they had failed to execute and perhaps it would have been true for their investment timeline.
Development is not a linear concept and the future is not planned as technology changes every 3 years. Picking and choosing the right horse at the right time is not an easy task. Luck and skepticism are required but also optimism at the right time. Whoever bought that stock in 2014 is doing well.
I am not selling you TDMI but rather hope that you would do analysis on stocks rather than getting fixated on factors that are not controllable or predicable by any developing company.
The only entity that you can control is yourself and your cash.
News 
Market Data 
Discover 
AI
