McLuhan’s theory states that the medium is the message. To put it simply it means that the way people receive a message influences the way the message is perceived by the audience. For example information on Wikipedia about healthy eating is considered less reliable than information on a professional website about dieting. This is because Wikipedia allows any user to edit information so it isn’t always factual whereas a professional website is made by experts.
These days I believe that McLuhan’s theory is still relevant even though he made this theory before the age of the internet it still has weight to it. Even from my previous example you can see that it still applies even on the internet between Wikipedia and other websites. A more recent example of this is when Kanye west said that he would run for president in 2020. Because he has a reputation for saying outrageous things like this people don’t take him seriously whereas someone like Donald trump would be taken seriously as people know he has a very serious reputation. This proves that McLuhan’s theory is correct even today as people interpret their two exactly the same messages in different ways.
However there are exceptions to McLuhan’s theory because even though Wikipedia has some false information most of the information on the website is factual and up to date and a lot of people still use this website for reliable research.
Overall McLuhan’s theory is still relevant because it can still apply to most ways people get information these days if its on the internet or on the TV.