I've been laid off from every job I've held (and once I was even re-hired a month later!) so I know the feeling. There seem to be others here who are also impacted and I fear the overall trend will only continue, so I wrote up my thoughts on how to future-proof your job search. I do think the GP comment about institutional knowledge could be a key part of it. Hope this helps: https://news.ycombinator.com/item?id=48067459