### Evolution of the TI  
With regard to TI, Figure 1 depicts the progressive evolution of TI, as indicated by an ongoing ITU-T Technology Watch Report [1]. According to the definition given by the ITU-T Technology Watch Report, the Internet that comprises ultra-low latency, ultra-high availability, ultra-high reliability, ultra-responsive, fast reaction times, scalability and security, is referred to as TI. On the other hand, the interconnection of physical devices with the Internet with requirements such as power efficiency, surveillance and data security, reliability, good energy management, relatively low throughput and effective low latency, is referred to as the Internet of Things (IoT). In contrast, the Internet with transmission of voice and data, video-streaming content, web browsing and telephony, is referred to as mobile Internet.  
Mobile communication contributes is crucial to the modern telecommunication infrastructure. In the 1990s, various versatile computers such as laptops, pagers, cell phones and personal digital assistant (PDA) phones were announced. Generations of mobile communication, i.e., 2G, 3G, 4G and 5G and their wireless communication services such as Universal Mobile Telecommunications Service (UMTS), General Packet Radio Services (GPRS), and Enhanced Data Rates for GSM (Global System For Mobile) Evolution (EDGE), have profited businesses as well as delivered comfort to the end user. These services have effectively linked tons of end users to physical devices. The 5G framework permits human-to-human (H2H) communication to trade multimedia content such as audio and video information. The primary centre of attention for the mobile Internet is facilitating the integration between end-user devices and the machines, thus implied as the IoT.  
After the evolution of the mobile Internet, the IoT is a concept that involves the communication of two or more devices that integrate the Internet and the cloud. Applications related to IoT have been investigated more as it offers considerable chances to ease life. They depend on H2M and D2D communication [7]. However, the IoT has a few demerits, such as low data rate, decent latency, surveillance and security, low compatibility, and privacy. Hence, the shortcomings of the IoT could be overcome by the \"Tactile Internet\" (TI), which is the progressive evolution of the IoT that manages networks in a real-time environment.  
The TI currently exists at the conceptual stage, and a lot of research is still needed to revolutionise it. The idea of the TI is becoming broader, where a human can interact with another human, which grants us an option to transmit a sense of touch and actuation over a long distance in real time with or without audio/visual feedback. These requirements in TI permit tactile end devices to sense and actuate in real-time transmissions over dis  
Figure 1: The evolution of TI.  
tance/remote communications. It will reform all aspects of society, culture and use cases such as eHealthcare, industry, and much more.  
Thus, information-delivery networks can be fundamentally transformed into skillset-delivery networks. Low-power massive connections, ultra-responsive, ultra-reliable and ultra-fast reaction times of the TI will enumerate another H2M interconnection paradigm by empowering haptic features. Conversely, 5G and beyond should be able to manage the extraordinary increment of mobile data traffic and the immense proportion of information from intelligent devices that will energise IoT applications. Each evolution step states some features that are required for an accessible mode of communication.