Final answer:
The writer's opinion is that replacing true laughter with exclamations in social media conversations does not bring the same joy.
Step-by-step explanation:
The writer's opinion concerning social media can be summarized as follows:
b. Replacing true laughter with exclamations does not bring the same joy.
In the given text, the writer discusses how social media conversations are filled with shorthand expressions of laughter, such as 'haha' and 'LOL.' The writer explains that these exclamations, although commonly used, do not necessarily represent the true feelings of the sender. According to Robin Dunbar, an evolutionary psychologist at Oxford, the physical act of laughter is what brings joy, not just the abstract idea of something being funny. Therefore, the writer's opinion is that replacing actual laughter with shorthand exclamations in social media conversations does not provide the same level of joy.