Me : Depends. If you're building a startup in this space then go for it. Lots of muppets are trying to hang onto their data centres. So build fast and exit quick. If you're consuming ... go AWS Lambda plus maybe Azure.
Me : Oh, the old private + public mix?
X : Yes
Me : That was a great laugh a decade ago and it still keeps delivering.
X : You don't agree with it?
Me : I'm trying to keep a straight face. Would you like some SAN with that as well?
Me : It's 2020. That's like asking me whether companies should have their own personal linux distribution in 2010. No, I don't think they should - focus and resources should be elsewhere.
Me : Eventually, bar the few large cloud providers. But it'll take ages. The last punch-card system in the UK was about 2011. People will hang onto stuff they shouldn't for a very long time.
Me : It's 2020.
X : What does that mean?
Me : PCI DSS Level 1, ISO27001, SOC 1 to 3.
Me : Ever wondered how they roll out power cables to deep sea oil rigs?
X : Do they?
Me : No, it's a niche but a good rule of thumb - If you have to generate your own power then you might need a private cloud.
X : Insurance?
Me : Are you a submarine, warship or space station?
X : No
Me : Do you have a nuclear power station or equivalent?
X : No, we do insurance.
Me : No, you don't need private cloud.
Me : It took Netflix seven years to remove its data centres. Give yourself a decade.
X : Any tips?
Me : Yep ... key is to start. Oh, and these days given you're so far behind, I'd start with serverless whilst sweating existing assets.
Me : Good on you.
X : I've made a ton of money.
Me : Excellent, well done.
X : Can I buy you a drink?
Me : That's very sweet. No need. A cup of tea would suffice.