> try really hard to avoid killing people
Yes, and both Elon Musk as an individual and Tesla Motors as an organization agree. How they approach that idea is somewhat different from what we're used to though.
Their basic assertions are (in my words):
1. Vision and radar based technology, along with current generation GPUs and related hardware, along with sufficiently developed software, will be able to make cars 10x safer.
2. How quickly total deaths are reduced is tied directly to how quickly and widely such technology is rolled out and used.
3. Running in 'shadow' mode is a good source of data collection to inform improvements in the software.
4. Having the software/hardware actually control cars is an even better source of data collection to accelerate development.
5. There is additional, incremental risk created when the software/hardware is used in an early state.
6. This is key: the total risk over time is lessened with fast, aggressive rollouts of incomplete software and hardware, because it will allow a larger group of people to have access to more robust, safer software sooner than otherwise would be possible.
That last point is the balance: is the small additional risk Tesla is subjecting early participants to outweighed by how much more quickly the collected data will allow Tesla to produce a more complete safety solution?
We don't know for sure yet, but I think the odds are pretty good that pushing hard now will produce more total safety over time.
> life is sacred
This is my background as well, and its an opinion I personally hold.
At the same time, larger decisions, made by society, by individuals, and by companies, must put some sort of value on life. And different values on different lives. Talking about how much a life is worth is a taboo topic, but it's something that is considered, consciously or otherwise, all day, every day, by many people, myself included.
Most every big company, Tesla Motors included,make decisions based on these calculations all the time. Being a 'different kind of company' in many ways, Tesla makes these calculations somewhat differently.