Internet of things different from one device to the next but there are basic characteristics shared by most. IoT creates opportunities for more direct integration of the physical world into computer-based systems, resulting in efficiency improvements, economic benefits, and reduced human exertions. The number of IoT devices increased 31% year-over-year to 8.4 billion in the year 2017 and it is estimated that there will be 30 billion devices by 2020. The global market value of IoT is projected to reach $7.1 trillion by 2020. Ambient intelligence and autonomous control are not part of the original concept of the Internet of things. Ambient intelligence
Cats and the Internet has more than 100 million views per month and has "created a whole new form of internet speak". In 2009, the humour site Urlesque deemed September 9 "A Day Without Cats Online", and had over 40 blogs and websites agree to "[ban] cats from their pages for at least 24 hours". , there are over 2 million cat videos on YouTube alone, and cats are one of the most searched keywords on the internet. CNN estimated that in 2015 there could be around 6.5 billion cat pictures on the internet. The internet has been described as a "virtual cat park,