Code:
mean_time_to_happen = {
months = 3000
modifier = {
factor = 0.9
NOT = { poor_strata_everyday_needs = 0.9 }
}
modifier = {
factor = 0.9
NOT = { poor_strata_life_needs = 0.8 }
}
modifier = {
factor = 0.9
NOT = {
organic_chemistry = 1
}
}
modifier = {
factor = 1.5
organic_chemistry = 1
So essentially, make sure the poor have their needs (impossibly hard), and get Organic Chemistry quickly (the modifier means it's 10% more likely to occur without it researched, and 50% less likely to occur once you have it).
Side note: Medicine only seems to affect the disease events associated with the "liberal rising" thing that most European countries get. Those disease events are pretty tame compared to the normal ones. Still, rushing Medicine should always be a priority anyway.
