The U.S. tech sector has reached a new all-time high 17 years after the dot-com bubble, driven by companies with solid earnings and cash flows rather than speculative valuations. Current valuations are elevated but reasonable compared to the bubble era, with tech expected to outperform the S&P 500 in the near future. The sector is also seeing a rise in dividends due to substantial cash holdings among major firms, providing an appealing investment opportunity amid ongoing innovation.