I like the idea of a very small language and I think it may be very useful for science and technology, but Toki Pona does not fit the requirements. Eg: it lacks

I like the idea of a very small language and I think it may be very useful for science and technology, but Toki Pona does not fit the requirements. Eg: it lacks words to express numbers. Lojban looks interesting for this purpose, but it's way too complicated.