> In 15 years when the search engine have failed to evolve because Google is a monopoly and has no incentive to keep improving it

- Google improves all the time (source: I have access to the search quality measurements)

- In all major countries they have someone trying to catch up to them and take their place

- In some major countries they are not even in the lead

Things can change in 15 years by the trends are not pointing downwards currently.