A survey by Anthropic, involving 81,000 Claude users, indicates that increased AI task execution correlates with heightened job replacement concerns. Workers in the top 25% of AI-exposed roles expressed three times more concern than those in the bottom 25%. Early-career respondents showed more anxiety compared to seasoned professionals. Despite these concerns, the average productivity score was 5.1 out of 7, with 48% citing expanded capabilities and 40% noting increased speed as benefits. Interestingly, both high- and low-income roles reported significant productivity gains, with some low-income workers using AI for side ventures. However, a paradox emerged: those experiencing the most AI-driven acceleration also feared job threats the most. Anthropic suggests this is due to reduced task completion times potentially undermining role viability. The survey also found that only 60% of early-career respondents felt AI benefits reached them, compared to 80% of experienced professionals. Anthropic cautions that the sample may skew towards positive outcomes, necessitating further research.