I'd argue that's a reflection on what I said before (prices normalizing from dirt-cheap). I do not consider these numbers a crisis at all.

Here is an example of why the Bay Area is in a crisis: https://abcnews.go.com/US/san-francisco-resident-fights-sudd...

A San Francisco man had his rent increased from $1800 a month to $8000 a month. True, it is one of the more extreme examples, but this is what I would call a crisis. Can you show me examples like this from Berlin?

The situation are a bit different though. The Bay Area is competitive despite its housing market, while Berlin to a large extent is competitive because of its housing market. If rents become similar to other major European cities Berlin will lose a lot of its appeal and potential compared to those other cities.

Silicon Valley became what it is today because there was cheap industrial land for chip fabs and random startups.

Debatable. As far as I know it wasn't really until around 2000 that Silicon Valley became dominate enough to really set it apart from other regional technology centers like Dallas, Boston or Pittsburgh.

In any case that doesn't really help Berlin if it takes, say, five years for its housing market to catch up to its European neighbors.

What? You're overlooking an enormous number of factors.

If it's cheap industrial land alone that made Silicon Valley how did Texas, Nevada, The Midwest and other places miss out on a tech business boom?

Texas has TI which is a big tech firm.

45% in 6 years is 6.21% compound per year, which is not unusually high for that time scale for an attractive large city.

Are the wages rising as fast? I would doubt it.

Probably not but that's again a global problem not a Berlin problem. My point was only that Berlin is not specifically harshly affected by these global trends, it's that way (or worse) in pretty much every attractive major city.

but rent was also dirt cheap in 2000-2010, so its more moving towards the average in other big german cities now.