Hardly, unless you're aware of limitations the project scientists aren't. You can see the current challenges (not akin to your analogy), listed on the initiative's site though, while challenging, are deemed to be, "based on technology either already available or likely to be attainable in the near future under reasonable assumptions."

"No ‘dealbreakers’ have been identified by the team of expert scientists and engineers leading the program."

https://breakthroughinitiatives.org/challenges/3