>>YeBanK+(OP)
Attestation is great for consolidating power and eliminating competition. As far as the cloud goes - you will only be able to use AWS, Google or Azure, because they will have proper certificates and attestation. Browser support will be built for "big three". For all the others there will be a fee for said certificates which will increase barriers to entry, and there will be even less competition and choice. Existing cloud providers will be the only game in town, just like it is with mobile operators and cable companies.