Windows is closer to irrelevant now than ever before. Many people use non windows tablets and phones far more than desktops. Some websites see far more non desktop users than desktop users so arguably their market share is under 50%.

'Closer to irrelevant' is a bold statement to say. Windows is strong, not as strong as in the 90's where it was the only consumer oriented OS, but is far, far away from being 'irrelevant'.

With more than four times as many android phones being sold than Windows machines it's not as far fetched as you might think.

For a more direct comparison Windows phone has 5% of iOS market share and 1% of Androids. Most major software news is off Windows Instagram and Pokemon Go for example really don't care about the desktop. The web got good enough that many services are native on mobile and Windoes just gets a website.

but it look like 30 years for Microsoft to become slightly less relevant . Microsoft business has evolved substantially beyond windows though.

People have been boldly stating the irrelevance of windows since before '95 and somehow it just...keeps...ignoring them.