All night — no friends, nothing,” Elon Musk reveals his lonely 24 hours on his 47th birthday. Loneliness can make the world feel a little bit devoid of color and bleak at times. Not solitude, but loneliness. That feeling of being alone, craving human company, conversation and accountability. Combined with the pressures of starting and setting up a business, it is hard to be the leader, the person responsible for all decision-making. It is tough at the top. After an exhausting week at the office, you've put on a brave face and given literally everything you've got to give. You cancel all social engagements by making up a lame excuse and you confine yourself to the four safe walls of your home to try and recuperate. You struggle alone, suffocating under an increasing pile of responsibilities, pressures, bills, emails, orders, complaints and when you get home to your partner they ask if everything is okay? you respond with the usual “I’m fine”. You both know you’re not fine! You r...