I'm not sure what you mean by the idea that "life can't survive without Bitcoin." While Bitcoin and other cryptocurrencies certainly offer many exciting possibilities for advancing economic freedom, personal sovereignty, and financial innovation, it's important to remember that they are still relatively new technologies with various benefits and drawbacks.

Regarding the notion that a small laser-based miner with low power consumption could help address scalability concerns in the Bitcoin network, it's possible that some technological improvements could help improve its performance over time. However, it's worth considering potential negatives as well - such as how much would developing a whole fleet of such miners cost? And would these make mining more accessible/shifting from Professional-miners era into Hobby-mining era?

Overall, the future of Bitcoin will likely be shaped by many different factors such as ongoing technical advancements more accessible infrastructure, regulatory challenges impacted security & use-cases growth impact rates to cite diverse scenarios.