Self-attention is required. The model must contain at least one self-attention layer. This is the defining feature of a transformer — without it, you have an MLP or RNN, not a transformer.
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But the capsule suffered several technical problems during its journey to the space station, and it was deemed too risky to take the astronauts home.
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“Cut and sew is not the type of work Americans want,” Smeaton says. “In China, labor costs are $2 to $3 an hour. In America they are $20 an hour.” He explains that tariffs would have to rise to 500% to make reshoring worth considering. Many firms would be out of business long before then.