I like the plane analogy. There is also the issue of recurrent expenditure by govt, I,e salaried , wages etc. the economy must grow faster that the increasing wage bill. Over 50% of Kenya's budget is going to recurrent expenditure. This is a a dangerous precedence as development project are starved of funds. The new Uhuruto administration must find ways to tame the growing wage bill. To refer to aviation, to fly further and longer, the plane must mantain high altitude I.e FL 350 or 400 where air is thinner hence lower jet fuel consumption.