[DMDB] Add concurrency control and recovery

Oops, luckily still figured out that that was missing...

semester4/dmdb/parts/07_data/01_cloud-systems/03_future.tex

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+\subsection{The Future}
+``The IT industry is, above all, an industry''. This is very much true and trends and developments are driven by demand and market.
+For hardware, the investment is very high for new developments and only pay off at large sale volumes.
+Hardware moves slowly, software even slower.
+
+Furthermore, the number of foundries has gone down significantly since 2002 (130nm architecture),
+where today, there are only three bleeding edge foundries left, of which one has over 50\% market share in bleeding edge semiconductor manufacturing, TSMC.
+Samsung and Intel both have lost out on major deals due to a number of issues (Nvidia Ampere was the last major GPU series manufactured by Samsung).
+
+CPUs are low latency (very fast), but low throughput in terms of parallelism, whereas GPUs are the exact opposite.