Kōkyo, Imperial District, Planet New Tokyo, House Kusari, 836 A.S
Sanae Miyasu
Raven.
It is too late to leave anyone in the dark. Many might not understand the implications, some will. Some will try to create external devices. There is no all-fixing solution to this. I am afraid these deaths are now inevitable, unless of course we get someone pose as expert for the less scrupulous customers who then deliberately makes these devices fail.. in a safe fashion. I am thinking of you here. The same goes for possible solutions to the degradation effect you've repeatedly mentioned in the past. A Kusari controlled usage of the device would mean a controlled environment, controlled acceleration at least. Now we face the possibility of exponentially increasing cases of hyperspace manipulation - all lacking the safety knowledge garnered by Kishiro over years of research. At least trying to slow down the spread of crudely made, incomplete and thus incredibly volatile devices should be our priority for now. By any means necessary.
The solution Kusari will figure out first and foremost is how to defang the device's military use, so that our own invention can't be turned against us should the day of a successful external copy come to be. Kishiro appears aware of potential effects on hyperspace itself but that angle will take much longer to investigate and unsurprisingly enjoys less priority than national security for the time being.