Reflex Research Profile picture
Aug 25, 2020 4 tweets 2 min read Read on X
I’ve been hoping for Tesla’s Gen1 roadrunner cells to deliver ~30% volumetric energy density increase vs Model 3 at pack level. This could be achieved with ~300-310 wh/kg vs GF1 cells at ~250 wh/kg.
Initially i expect largest progress to be cost, footprint & capex.
I expect Tesla has a pipeline of various technology upgrades in earlier stages of R&D for Roadrunner Gen 2-5 cells etc with a path to 400 Wh/kg.
Longer thread on my expectations for Battery day. https://t.co/YpR34bsMad
It’s worth noting I think Tesla has huge & likely insurmountable lead in the EV transition even without these potential new next level battery cells.
For example: https://t.co/UEBKrOA0VO

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More from @ReflexResearch

Oct 14, 2021
1) It is sad how many people are against investment in space launch technology.
The narrative “Space is just a playground for billionaires” is not helped by those who focussed on sending themselves to orbit as an end goal, but why is space tech important?
2) More broadly, space launch tech is innovating towards a 100x reduction in launch costs and increasing the ease of access to space.

Why does this matter?
3)
A) Disaster preparedness; With cheaper & quicker access to space we have better odds of addressing issues such as approaching asteroids & satellite wipeouts from solar storms. This is the same as investing in pandemic preparedness ahead of an unknown future event.
Read 9 tweets
Oct 13, 2021
Analysts have an irrational urge to be “conservative” when forecasting the future, as if you are only wrong if your forecasts are too high.
The future is uncertain, so acknowledge the range of possibilities.
But try to be accurate, don’t try to be conservative.
Technology production volume vs cost curves & adoption speed once economic parity is reached are all well understood.
Forecasting absurdly slow rates of clean tech price declines & deployment growth deters investment in them & prevents policymakers supporting them as the solution
Thread on what drives technology production costs to decline with cumulative production volume:
Read 4 tweets
Mar 28, 2021
Some thoughts on Self Driving Cars:

This is unsolved tech & will be a radically new product with very different cost structures vs current options; the future is highly uncertain.
This justifies a huge disparity in opinions but many may have too high certainty in their views.
Key questions:

1) Will self driving cars require 2x or 20x average human safety to achieve regulatory approval in a given jurisdiction?
2) Will it take 1 year or 20 years to get to this level of safety?
3) Is the Tesla-like deep learning heavy, hardware lite, incremental progress on driver assistance, general solution approach best? Or is the Waymo-like deep learning lite, hardware heavy, moonshot leap, geofenced approach better?
Read 7 tweets
Oct 25, 2020
1) Tesla's Autopilot driver assist product is now largely feature complete, but how much further does it have to progress to achieve reliability 3-5x greater than the average human & allow removal of human supervision?
...
2) This is the March of 9s.
Tesla’s self driving strategy from the start was chosen & optimised for this moment now; putting a system & infrastructure in place without data or hardware bottlenecks to allow largely automated progress for a feature complete AP on the March of 9s.
3) But how far do they have left to March?
Is Tesla 99.9% there, does it have 9,000x further to go or its it 33% there? It’s all a matter of perspective.
And most importantly does this all mean is Tesla 1 year away or 10 years away from Robotaxi level reliability?
Read 36 tweets
Oct 22, 2020
According to usually reliable Tesla hacker @greentheonly Tesla looks set to move to a new next generation radar from Arbe.

Tesla at one point reportedly had its own in-house radar under-development but its not clear if this project is still ongoing.
Image
Read 4 tweets

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