Not offended in the slightest, just questioning Mr Cochrane when he presents as facts things that aren't true.
5G is an interesting one. Verizon seem to think a cell every kilometre is fine, this using 28 GHz and 39 GHz bands.
The first commercially available 5G modem uses the 28 GHz band.https://www.qualcomm.com/media/documents/files/qualcomm-snapdragon-x50-5g-modem-infographic.pdfThese are a bit dry but might be useful:
http://faculty.poly.edu/~tsr/Publications/ICC_2013_28.pdfhttp://wireless.engineering.nyu.edu/static-homepage/tech-reports/Characterization-of-the-28-GHz-Millimeter-Wave.pdfYour link has one major problem that doesn't meet my acceptance or approval:
Estimates vary but complete coverage of the UK’s 24million hectares and property (outside and indoors) could, in theory, need between 5 to 7 million small base stations requiring high capacity fibre optic connections.
Most base stations right now don't have fibre optic connections. They use point-to-point line of sight microwave radio as backhaul to an aggregation mast that has a fibre backhaul.
Existing street furniture has great potential to host smaller cells, as it both has existing backhaul and in many cases power supply. Alongside this cable companies can certainly build 5G transceivers into their CPE and backhaul them using their DOCSIS networks without impacting on their customers' own broadband.
While 5G itself as used by the x50 might be able to offer 5 Gb download speeds what do you reckon the odds are of every cell being provisioned with that kind of backhaul straight away?
Copper, be it twisted pair or coax, has one huge advantage over fibre in this regard. It can both backhaul and carry power for 5G femtocells. Hybrid networks will be more than capable of backhauling earlier 5G deployments and will in time evolve to full fibre. There will be no need for cable to do so for a while as symmetrical 10Gb is perfectly possible over the hybrid fibre coaxial network. Twisted pair doesn't have the same lifespan but Fttdp will be acceptable for a while, and the shorter fibre run provides an opportunity for power injection without too much attenuation.