Why we haven't found aliens (pt 1)

let's say we become digitalized,  we can have everything and we won't get sick and there is no clash of interest or limitation of reserved resources between beings there unlike what's in reality. now considering this fact that time would o faster in that virtual world, so we may be there for thousand of years but it's only  been a year or two or five in current real world  since our departure to that world , what will it be that motivates us to live longer or see what purpose there? scientist would have more time in there to find the answers for problems and improve technological advances and they may even bring it to the real world but how many times humans may find it necessary or sensible to return back to this world? not to mention that it would take less than one percent of any city to fill it with servers for the whole humanity to live there and that's why we wont need to travel to another planets as we have got time and ensured prosperity there, we can have multiple sites for backups around the lobe(5-10 safest place) to avoid any issues and with advanced ai protecting & maintaining it , nothing will goes wrong