I still remember there were papers claiming News is even more addicting than Porn. Your porn time only last so long, but you could spend hours reading news. From technology to music, fashion, industry news, gossip, Anime, politics, or ever growing interest you have.
Also the anticipation of wanting something to happen, but still hasn't happen yet, things where you cant really do it yourself. Nuclear Fusion breakthrough, Solid Battery breakthrough, MicroLED breakthrough ( So we can throw away those awful PWM OLED ), collapse of property pricing. etc.