I think holding more helium in a smaller space is the opposite of what you want. The lifting force is equal to the weight of the air being displaced, so you want as little stuff as possible in as big a volume as possible.

Maybe if you went the other way round and compressed the atmosphere?

The US needs to do way more than invest into public transit. You need to completely rethink city planning to get something suitable for human travel. Suburban America is like the antithesis to public transportation (or god forbid, walking).

Most likely there is a separate censor LLM watching the model output. When it detects something that needs to be censored it will zap the output away and stop further processing. So at first you can actually see the answer because the censor model is still “thinking.”

When you download the model and run it locally it has no such censorship.

As an example, large Japanese cities go extremely hard on mixed use buildings and are very livable despite their crazy density.