Skipping some detail: the model applies many high-dimensional functions to the input, and we don't know the reasoning for why these functions solve the problem.
Reducing the dimension of the weights to human-readable values is non-trivial, and multiple neurons interact in unpredictable ways.
Interpretability research has resulted in many useful results and pretty visualizations[1][2], and there are many efforts to understand Transformers[3][4] but we're far from being able to completely explain the large models currently in use.
Tech companies don't control the government, the government has much more power than them.
Also, within the government there are groups, though they're a minority, that are against big tech.
But yes, the State gets private information [0] and influences content moderation [1] from tech companies, and on the other side big tech spends millions each year lobbying the federal government [2].
Interpretability research has resulted in many useful results and pretty visualizations[1][2], and there are many efforts to understand Transformers[3][4] but we're far from being able to completely explain the large models currently in use.
[1] - https://distill.pub/2018/building-blocks/
[2] - https://distill.pub/2019/activation-atlas/
[3] - https://transformer-circuits.pub/
[4] - https://arxiv.org/pdf/2407.02646